Honestly, the fact that Square Enix made it from the least-represented third-party in Smash to the most-represented is almost poetically hilarious. Calling it now, all eyes will be on Sega in regards to Sonic's sub-par lack of content in the next game.
Exactly
I think just looking at the Situation of how the Lineup of both the Base Roster and DLC turned out, it seems everything was planned out from 2015-2016 era, so around the Time Base Ultimate had it's Project Plan completed and/or Development started
Like I mentioned in the Post about Sephiroth, Sonic was in Dire Strats in 2015-2016. Sonic Boom was supposed to be the New Transformation of the Sonic Franchise, but it flopped Hard (even if the Cartoon was good). Sonic Boom Rise of Lyric is cosidered as Bad, or even worse than Sonic 06, and this was the game Sega was making to Appease Nintendo. I think to Nintendo, not only was this Disrespectful, but now they aren't even sure if the Sonic I.P would be living well. Granted there was Sonic Dash, but I'm unsure if Nintendo were paying attention
In addition, Mario and Sonic at the Rio Olympics I actually believe underperform and reviewed terribly. Lost World also kind of Underperformed also. I think combining all of that and the Lack of Japanesse Popularity of the Sonic franchise, I can see how Another Sonic character wasn't within Nintendo's Plans
And while Tails, Knuckles, and Shadow were still popular Requests during the Smash 4 era, especially on Sites like Miiverse, Twitter, and Youtube, I don't think they were the Top of the Ballot of anything like characters like K.Rool, Banjo, Ridley, and Sora were, So maybe they weren't in Sakurai's Plan
However going into the Next Game, Sonic is Winning. As Mediocre as Sonic Forces was, It did some Strong Sales, and Mania especially did good. Sonic in alot of Crossovers, Mobile Games popping, Highest Grossing Video Game movie of all Time, with a Sequel on the Way. Netflix Series on the way, and the Next Sonic game looking enticing. IDW Comics doing good, even selling out in Japan, the Region where Sonic usually doesn't do that good
Plus Shadow and Eggman had their biggest boost in Smash Requests yet, and Tails also got some love as well
So I think Smash 6 is the actual perfect time for Another Sonic character. Sonic has proven to never die. In spite of 2 Catastrophic games that would kill many other video Game series, Sonic not only remains alive, but also Popular and Successful to this day. That's what Nintendo loves to See, and I know Sakurai saw the burst of Requests another Sonic character keeps Acuminating as Smash games go by
I think I made the mistake of trying to Put the idea of Shadow becoming playable into a Set timeline. First it was Base roster, than FP1 for a short while, than FP2, but I think I have to realize that what I DON'T Know is when Shadow would become playable, What I DO know is that
-Shadow will be a Playable character
-He won't be an Echo fighter
I think that's what I should have been trying to Say. Knowing the Situation of Ultimate, I should have known that Shadow would have to wait years and years, but I'm willing to wait. His Support base and other Sonic character support base are never gonna Die, and I also don't Plan on dying until at least Shadow is confirmed for Official Smash game