It depends on how far "down the road" you are talking but I reckon that this time next year BG3 will be largely forgotten.
A more important question for me would whether other companies will be encouraged or discouraged about making a DnD/Forgotten Realms game.
This is essentially why I copped out and clicked
No real impact either way; I don't feel like we know BG3's legacy yet. As for what other developers may take away from this success, my suspicion is that the studio heads are going to consider the tone and sexuality of Baldur's Gate 3 as the "winning ingredients" long before they get too far into the weeds of gaming mechanics.
A GREAT RPG is about the story and the lore more than the mechanics.
Totally agree. When I look back at something like Dragon Age: Origins, I wasn't loading in for the combat mechanics so much as the setting, characters and story. It's also worth noting that for some people - ok, me - unfamiliarity with DnD mechanics and lore was a
painful early barrier to entry for this RPG experience.