D&D hasn't changed much, if at all, based on D&D-branded computer games. IIRC, one of the reasons for making AC positive was for ease of coding, but beyond that, I don't see that the likes of Baldur's Gate have had much influence. If anything, they tend to lag behind, ignoring newer rules and at times even using prior editions; Baldur's Gate 2 was 2e, IIRC, and the Gold Box games were primarily 1e even many years after 2e's release.
D&D has actively, vituperously and unfailingly balked at any influence from the more successful Final Fantasy series and its lesser-selling kin. When an element that could be construed as being similar to FF appears, its creator is always quick to note that he's never even played the games... which is a bit like designing a financial board game and boasting of never having played Monopoly.
D&D has been influenced somewhat by MMORPGs. These, particularly Everquest and WoW, seem to be acceptably "D&Dish" to have elements incorporated. I would expect this to continue since MMOs map so closely to the D&D model and have so much more R&D money poured into them.
I think it's safe to say Doom's impact on D&D has been slight.
