Well, they've been upfront about the fact that the remake won't be in the same continuity as the compilation, but the trailers we've had so far also clearly show the remake to be going in a different direction than the original game, although to what degree we can only guess.
So, as I've said before I'll say again - I have no doubt ideas, scenes or characters from the compilation might make its way into the remake, but they will be no more consistent with the titles they're lifted from than the the ideas, scenes and characters from the OG were consistent when they were put into the comp or other spin-off material.
If you don't expect the Nibelheim incident to play out frame by frame like it did in the original, I see no reason what so ever to expect it to play out exactly like it did in CC, or that Zack's death, for instance, will play out frame by frame like it did in CC.
The remake is its own thing. I'm fairly sure will have its own story, and its own take on the plot in a vacuum seperate from the rest of the franchise.
That does not however mean that ideas, scenes or characters from the comp won't survive and be represented in a new iterative form in the remake.