Definitely not because it is a different engine from 20 years ago. This is coding shit but two different engines are like two different languages. You can't create a sentence combining english and portuguese and expect it to make sense.
However what they can do as obsidian and "recreate" the BG world with updated graphics. Which is not what they did in the pre-alpha.
poe2 graphics looks really beautiful. the only thing i hated it was that it's 2D. i would have like it much more if it's fully rotatable 3D. but that's not the main problem. the main problem for me is that they don't follow basic core rules.
the game on day 1 is totally different 3 months later. every few months all they did was keep nerfing without adding anything. all the builds created by the community has gone to waste as it doesn't work anymore. what they did was just checking on the forums on veteran builds. then they just nerf them. every single time. up to a point that the game became a boredom for me.
I played PoE2 recently and I enjoyed it.
When the devs created all items, feats and abilities they could not predict every possible combination of them and how they work together.
Some players found combinations that are completely OP and obsidian reacted to it.
If players of BG3 find out that a combination of spell a, feat b and item c turn every battle into a cakewalk, I hope they change it too.
DnD is not balanced at all. In BG a high level fighter can hit things with a sword while a high level mage has time stop, chain contingency and so on.
This is also true for new games. Pathfinder Kingmaker ( I consider pathfinder as DnD 3.75) kept quite close to PnP rules (except flanking) and had more options than any other game before. Some hardcore players solo the game with godlike chars, while many players had problems to make good chars or beat some of the normal enemies. In PoE2 a few players made the ultimate (solo, hardest difficulty, no reload, beat all optional bosses, all optional challenges that make the game harder on), but almost any player can beat the game on normal if they put some commen sense in selecting abilities.
Some people may call DnD great for what it is. I play computer games since the mid 90s, and I have decided for BG3 and the new pathfinder to have a single class char who is focussed on doing one thing very well. My attempt to make a cool char in PK failed miserably.