Until we see what rules they actually implemented or not this decision cant be made. And it's not whether this is a bg game. The question is whether it's a dnd game. When baldurs gate came out people were pissed that it was turn based then they go to love the real time pause. Personally I always wanted baldurs gate to use toe system.
Will it be a DND game, yes it appears they want it to be, is it a BG game in more then name... unclear.
at least, based on this tweet from swen
Quote
"Our goal is to capture the spirit of 5e just like BG1/2 tried to capture the spirit of 2e. We're not looking to recreate the previous games. Different times, different methods."