As soon as they give us information on the story we will see what makes sense roster wise.
Whether this is a spiritual “reboot” like MK9 or starting SC6 at SC1 timeline-wise similar to how the Alpha series was before SF2 we will see.
Because SC2 is 4 years after SC1, so Talim is easily one of the most requested characters and she would be 11-12 in SC1 time. Same for Cassandra, Amy, Tira and Yun.
I expect DLC.
I also expect this title to be at a space between SC1 and SC2, so that we can keep the time-frames without retconning too much of the story.
Zasalamel is easy, hes immortal. Setsuka might be difficult, her story kinda revolves around searching for Mitsurugi at a particular point in time.
Also, SC1 Siegfried is still a host to Soul Edge and thus Nightmare/Sieg arent two completely different people.
They have a lot to work with, they are going to have to carefully navigate the lore to include familiar faces and new blood. Theres just no way you can expect any SF3 type “replacement clones” from SCV since thats close to 16 years after the events of SCIV if I recall correctly, Sophitias children are still unborn or newborns at this point.
Rock, Hwang and Li Long have always been the least popular characters in the series. They have been skipped quite a bit so the nostalia to return could put them in, however on pure popularity Astaroth, Yun and Maxi are all more popular characters. Its SC1 so I fully expect the trio of Maxi, Kilik and Xiangua…they are basically the protagonists of SC1. Astaroth, Nightmare and Cervantes are the antithesis to that. But then I go back to the artful storytelling, because that gives the new evil like Tira not much of a place in this story…Yoshimitsu and Zasalamel can always be in for one reason of another. Mina…didnt play much of a role she was knocked out of the “cute” archetype when X and Talim hit the scene.
Ivy is a shoe in at this point with the formation of Schwarzstrom that almost confirms Lizardman/Aeon to some capacity.
The only loose ends I’d like are will they admit that Viola created Amy in her image as a clone, which would allow us to get Viola once again? Ralphael’s dialogue with Viola in SFV insinuated that he didnt know who she was, but she was familiar. You would never not recognize someone you adopted and gave your name to, unless Amy was never human to begin with. She had no backstory, Ralph found her after she protected him in some capacity in SC2. She was too good to let go. She was extremely well designed from a fighting perspective. I dont want her moveset to go to waste.
I could theorize so much at this point. Its difficult to wait for this info.