Well considering they've done this remake just to remove the romance path, and how their recent developments have done (The half NTR game, with some NTR commisions, as well as other NTR stuff.) I wouldn't hold my breath unless told otherwise, seems to be their new intrest
Honestly... I'd probably guarantee it.
Like it's simple 1 + 1 = 2.
Is going to listen to supporter suggestions and is already making it darker + around 30-50% (purely an assumption, but if half the previous game was NTR, it's a reasonable one.) of their supporters are NTR fans (and probably the biggest spenders of $, not an assumption, many a non-NTR game had it added because of this) = The game will have NTR.
The fact they didn't mention it despite their previous game having it, is enough of a hint in of itself. (may even be possible they're intentionally avoiding addressing the topic until they actually add it... wouldn't be the first dev to do that).
If you need more than that: People spoke out against the blackmail path point... yet they're still adding it. Do I really need to say more?