I mean, it will probably be like Starcraft remastered so basically the ideal version of a still retro game? I doubt they can (or will) try the changes of 3 (which would have also been ideal with just engine/texture improvements, everything else intact as it was, Idk why they wanted to mess with it more).
I'll be surprised if it's a full 3D remake like Diablo II but that'd be welcome too, if they don't mess with what matters again.
Although I'm never playing any of these games again, probably, so a nearly 1:1 faithful rendition will just be something to see once and forget, it's probably the best possible scenario for those who still may or who haven't yet and couldn't deal with the old look for whatever reason, fine as it still is.