Long story short: Yes. You will see that in future but not here on Qhimm.
There has been talking about FF7EC models, Tsuna already show on his Twitch a sample of it. IMHO too tall in-game but there is still a lot to do.
I would suggest to come back and see around June 2024; Cait, Vincent and Cid's models should be in FF7 Ever Crisis by that time.
Also musics, dialogue window, portrait are taken in consideration.
Just a matter of time.