Oh shit so we actually already moved past SF3, we just never knew it. Going by some of these tweets this is what he (might) be saying;
Some character stories take place during and even slightly after the events of SFIII. An example is the ending of Ed's story (where we see all of Neo Shadaloo) which seems to occur at the same time as SFIII.
I'm not sure but he might be saying that Laura's SF3 arcade ending where Sean wins a tournament might be canon? If so then my boy finally won something 😭
The Neo Shadaloo gorilla is named Baba Mwalimu (which Ryce on ResetEra says is Swahili for "father teacher").
Neo Shadaloo has inherited different characteristics of Bison. Falke can inject Psycho Power into objects, Ed can eject Psycho Power, the guy with the knife can teleport, and Baba Mwalimu is super intelligent.
Ed's name came about when Nakayama wrote a note to a designer saying "ED" which meant "Ending"; the designer mistook the "ED" abbreviation for an actual name, and Nakayama thought it was cool so it stuck.
"There's a reason for splitting up Bison's abilities. Maybe he knew he was going to have a confrontation with Ryu, or maybe he wants to come back in some way and continue as a king of fighting even if his body is destroyed... I hope we can talk about that someday! As for the names, as someone noticed, the initials are B (Baba Mwalimu), E (Ed), F (Falke), and G (I'm reaching Twitter's character limit...)"
So 6 might actually end up moving past 3rd Strike, wow. I almost don't believe it's finally gonna happen lol.
EDIT: This also might explain why they kinda dropped Neo-Shadaloo after Falke? They pretty much wrote it so that they don't really make a move until SF3 so I get why they wouldn't really end up doing a lot for the rest of SF5's story.