I think instead of Just focusin on Vincent they should have given Yuffie equal status as him in a sequel (that in this imaginery scenario replaces DOC) they were both underdeveloped and optional in FFVII so it would have been nice to have them both be the mains, instead of just Vincent who is totally cool but hisw attitude gets really grating. Such polar oposites in the characters make them both interesting, but only when the other is there to balance it out. I think Yuffie should have had a bigger role.
they appear to be the only to who need further development. (Vincent majorly as Yuffie seems to have actually grown a bit)

But a decent Turk (elena,rude,reno,tseng)/Shinra game would be great