This would be a bad idea. Larian makes games with a very different tone/gameplay from the Infinity Engine games. There is no way that this would not rub off on any hypothetical BG I+II remakes.
Secondly, It would be expected to adhere to the lore of whatever iteration of D&D lore that WoTC is playing around with currently. Larian is already.....loose with Forgotten Realms lore in BG III, I would not like to see the added layer of the setting being changed to accomodate whatever dictates WoTC might have in mind. BG I+II literally got me invested in the setting. I don't want to see Haer'Dalis as a Horned red devil man or whatever.
Thirdly, I don't think they'd do the characters justice. I have seen what their writing team did to some of my long-tie favorites
And I don't want them touching any more of them with a ten foot pole.
