A lot of people have messaged me about this because they didn't want to go back and read all my posts to recap all the major rumors so I'll put them all in this post for quick reference:
All Smash rumors from my 4 contacts since November:
-All my contacts believe that 5 and 6 will be shown in the same presentation or at least very close together.
-Most of my contacts believe Cacomallow is real.
-Most of my contacts believe 5 will be one of the only Western characters added. Most agree on the company.
-Lots of disagreements about 6. Some say it's a bonus character, one says it's a full pack, complete with a stage, music, and 6 Mii costumes.
-For the Pack 6 rumors, character will be totally unrelated to all its content. The pack will include 4 Mii costumes from the same series and 2 indies with music from two totally different games. Supposedly it will come with a spirit board too, again, totally unrelated to the character.
-One absolutely crazy rumor from November that 5, 6, and 7 will all be revealed together. None of my contacts believe it.
-Based on rumors, the purpose of "Season 2" seems to be to knock out long time fan requests more than anything else.
-According to rumors, Indies and echoes are all but confirmed toast. One of the few things all my contacts agree on.
My personal predictions and theorycrafting on characters 5-10 can be found in the following two posts:
https://smashboards.com/threads/geno-♪-return-of-the-starsend-savior.446378/page-2162#post-23763798
https://smashboards.com/threads/geno-♪-return-of-the-starsend-savior.446378/page-2151#post-23759571
All the major lingering Nintendo rumors since July from my contacts:
-No less than 7 Nintendo Remakes/Remasters for 2020. None are supposedly Zelda, Kirby, DK, or Star Fox.
Sunshine HD is one of the rumored remasters but confidence in it being real is super low.
New hint I've been allowed to share: half this list is "dead" franchises. F-Zero isn't one of them; sorry...
-Tales announcements for Switch but nobody knows what or when.
-New retro Ninja Gaiden for Switch but, again, no one knows when.
-New 3D Mario for E3 that's not Odyssey 2 or Galaxy 3. Supposedly a totally new game not tied to past games.
-Soul Calibur for Switch but, again, who ****in' knows.
-Nintendo is supposedly going to try its damnest to make BoTW 2 2020.
-Prime 4 is having a ton of complications and will probably miss E3... Again...
-NEW: SNES game dump coming "soon." Games weren't shared but contact believed that at least two would have major announcements related to them. One of my personal guesses is SMRPG. Another hint they gave is that most would be games on the SNES Classic.
-NEW: GameXplain recently came out with another one of their notorious rumor videos and I'll say three of my contacts and I have heard these same rumors. Wii U ports incoming, three games heard the most, two are painfully obvious at this point and everyone has been asking about them forever. My contacts think they're finally happening.
-NEW: Two of my contacts say Nintendo will continue to be super "buddy buddy" with Microsoft. S***'s RARE Replay and King Zell's Masterchief Collection are heavily implied to be finally be happening this year, with much more confidence in the first.
-NEW: That game I teased for the Nindies/VGAs? It's probably finally happening. If you figure it out based on clues myself or others have left, I would advise not saying it out loud. Let it stay a surprise for the full impact it deserves.