The Remake of FFVII isn't a title in the Compilation of FFVII. Because FFVII wasn't a title in the Compilation of FFVII either.
It's a remake of FFVII.
Which means, they aren't going to be including elements or tie-ins to the Compilation because... FFVII wasn't doing that either.
It's just FFVII. That doesn't mean they're negating the works or continuity of what was in the Compilation. That would make no sense whatsoever nor would S-E
want to do that because they still market and sell material based on the Compilation.
They literally are selling OTWTS as a novelization as of this year.
Tetsuya Nomura : Concerning Final Fantasy VII Remake, which is a title loaded with a lot of mystery for now, it will be different from the original Final Fantasy VII. If we make a compilation, these games will hardly have an overall coherence. It will be difficult because there is no continuity between the Compilation and the Remake for the moment.
This is what Nomura actually said about whether or not the FFVII Remake would connect to the FFVII Compilation at all, back in 2017. "For the moment," there is no continuity between them.
"For the moment" is a strange modifier as if they aren't sure or are hedging on whether or not to do it. But ofr overal coherency and consistency to Final Fantasy VII, they aren't concerned with connecting it to the Compilation. That's not the same as negating the Compilation of FFVII. That's just making the remake focused on being a remake of FFVII.
Hell, Nomura technically contradicted himself in that statement by utilizing the Compilation of FFVII's re-design of the SOLDIER emblem. They're even showing Sephiroth with a fucking black wing which... Once again, was only technically shown in Compilation of FFVII games (or Kingdom Hearts if you want to be technical.)
I wouldn't be surprised if more easter eggs or subtle references to the Compilation will appear in the game. But no, it's not going to feature or be made a direct member of the Compilation because it's just supposed to be FFVII.