I'm a million percent sure that WoTC&Paizo wouldn't allow this, but I'd want a BG remake to be done by Owlcat.
Obsidian would be acceptable too.

The question is: do you remake BG1&2 using AD&D2e rules or update it to 5e (or 3.5e)? Updating it to a more recent ruleset would make it much more accessible, what with 5e & Pathfinder being so incredibly popular and familiar these days, but this would also generate so much negativity from old fans. Idk if it'd be worth it.

Personally, I'd prefer an updated ruleset. But I never played BG1&2 or AD&D as a kid so don't have any nostalgic attachment.