I am late to the party.
The only leak recently that mentioned something or other about voice cast changes (apart from the billion Ben Schwartz things) was this "Sonic:Rose" / "Sonic Unlimited" leaks from the 18th of January. Rie up there posts links, but since the 4chan links are now dead, I'll share them verbatim, spelling and grammer errors and all, for the sake of discussion (though, you know how it is with 4Chan... it COULD be true, but it's best to assume it isn't unless given reason to believe otherwise)
The original leak:
View attachment 300840
"These days I've seen that Sonic Rift supposed leak going around and I can confirm that that is indeed fake. The only part of that leak that is actually true is that Sonic's design now has a slightly realistic fur texture (nothing exaggerated, similar to what Nintendo did with Mario's hair in Odyssey).
- The game is a soft reboot with
a new voice cast, similar to what Adventure, 06, and Colors did. The characters feel like they're younger, they represent their respective ages better.
-It will lead into a new animated series in 2022 that'll have the same voice cast. This series and the game itself have nothing to do with the IDW comics plot-wise like some people have been hoping and saying. They also have nothing to do with the movie (although sonic's characterization is similar to it).
-The game has 2 playable characters: Sonic and Amy. Their interactions are similar to how they are portrayed in recent media like the idw comics, it seems that's how Sega likes them to be represented nowadays.
-Sonic has a new gameplay style, the most similar one would be Lost World to be honest. There's no "running button" like in that game, speed is progressive depending on how much you tilt the stick or how much momentum you have. Parkour makes a return, but it's more of a situational/scripted ability. The kick isn't here. You can go a lot faster than in LW. Areas are open-ish.
-Amy's gameplay is similar to other 3d platformers, with bigger and more vertical areas than Sonic and simply combat mechanics with the hammer (there aren't combos, skills or anything like that).
-There aren't any hub worlds, but there's a sort of zeppelin-base where you can talk with other characters, levels and check on the collectibles you have so far.
-There are new writers in place, the same ones that'll handle the new series. I don't know who they are, but I've heard they are people with experience in other tv shows.
-The development is going smoothly. There's been a lot of silence surrounding the game because they want to wait until everything is in place, this is a multiple media project. Also, it took some time to assemble the team for the game since Sonic Team as it was doesn't exist anymore, it's a brand name more than anything else, so expect a lot of new people to pop up in the credits.
-I don't know a lot of specific story details, but it consists in sonic, amy & co trying to find and get a certain object before Eggman does. Expect a light-hearted and adventurous tone.
-I have no idea about what the game is called but its codename development name was "Sonic: Rose" Don't expect it to be that, it'll 100% have a different name.
-It started development with ps4, xbox one, pc and switch in mind and it'll release in those systems, but there'll be next-gen versions as well
"
That's the OG leak.... and then the next day this strange one popped up backing it up
View attachment 300846
verbatim:
"
Yes, that sonic:rose info is real. The actual title name is Sonic Unlimited, i'ts supposed to come out next fall, but it might get pushed back to 2022 and not make it to the anniversary. Both the game and the series will revolve around "the hedgehog species lore and mysteries", which is why sonic and amy became the central figures. The plot of the game has the main crew (sonic, tails, knuckles and amy) traveling around the world in a new aircraft built by Tails as they try to find an artifact connected to an ancient hedgehog civilization before Eggman does. It's sort of an Indiana Jones-esque type of adventure. The game is a revamp of the franchise, but it takes place in the modern continuity, it does not erase what has come before nor is it an elseworld type of thing like Sonic Boom was. The rest of the cast makes an appearance and they'll hop into your flying-base as you progress through the story, you can talk to them there (similar to how you did it in generations). It'll introduce a new female anagonistic character deeply related to the moon (heavily inspired by the tsukuyomi mythos in japanese culture). The netflix series is being developed by WildBrain and Man of Action in collaboration with Sega and it'll be 3d animated. Regarding the game's soundtrack, it has a sonic runners feel to it. Sega really wants this to succeed and to take advantage of the movie's good reception so they've been taking their time to make sure everything is in line with their expectations of quality.
"
Also from the day following the original (the 19th of January) came THIS followup:
View attachment 300841
Verbatim, once again:
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Well, I've been reading that game's rumors and... they could be legit.
Almost a year ago I could do beta testing for a new sonic project and it seems to be pretty in line with what's been described. I won't disclose too much bc I had to sign an NDA, but the many similarities between my experience and the descriptions of those leaks would be too big of a coincidence. Idk about the name or if it's related to a tv show since they don't inform you of those matters, but given how accurate the rest of the details they give seem to be, I would bet that stuff is true as well. My experience with the version of the game I could play was really satisfactory so I think maybe this time we could finally be in for a treat! (I would prefer a sonic mania 2 though, but oh well)
"
Now for MY thoughts on this whole moose:
It's rather interesting that they claim part of the story involes an ancient hedgehog civilization or whatever, because if I recall correctly that is an unused concept from Sonic Boom: Rise of Lyric, hence all those hedgehog statues lying about the place in that game and such. Sega is no stranger to recycling unused ideas, whether that's taking Madonna and turning it into Princess Elise, taking the idea of Sonic being a rabbit with stretchy ears or whatever and bringing it back as a werewolf with stretchy arms, or of course Sonic X-Treme's unused idea of having Eggman controlling 6 monsters resurrecting itself as the Deadly Six, or one of Shadow's original concept art pieces being reworked into Blaze the Cat. SEGA kinda likes to revisit old ideas and rework them, so this would be par the course.
Speaking of revisiting old ideas and Sonic Boom, this whole idea that it's a multimedia project tying into the Netflix show would explain a lot. It'd explain why Netflix yanked the announcement tweet and never really came back with it for reasons unexplained (had to wait until the game was announced). Plus, Sonic Boom was very much made with the "multimedia project" angle in mind, perhaps this is something of a white whale for SEGA?
Now, only the first rumor seems to mention anything about a new voice cast, but THAT'S the thing; it implies a new VOICE CAST, which implies to ME that that would mean "pretty much everybody" gets a new voice, not just Sonic. Roger Craig Smith has announced he will move on from Sonic. We'll have to see if anyone else does too.
Now the odd thing here is that it claims that the two playable characters here are Sonic and Amy. If that turns out to be true, get ready for the whole "Amy gets upgraded into playable character to tie into Sonic Unlimited" debates to start, warning ya now (not that I'd mind, I'm enough of a Sonic fan that I'd be happy with just about anybody that isn't Classic or Boom). I suppose "Sonic and Amy are the playable characters" is no stranger than the whole "the playable characters are Sonic, a shorter chubbier Sonic, and a character of your creation that could be anywhere from a lime-green wolf to a red bird in a Gamer hat" that Forces went with.
I BET... that with the announcement of Roger Craig Smith leaving the role behind that a GAME announcement isn't too far behind... or at least I'd like to think that.