Honestly, if you can beat the AI just by understanding how they will play their turn, that's even MORE of a reason that it should go because then it has nothing to do with your charisma skill but how well you can take advantage of the bad AI. I've heard people say you can beat the AI every time if you choose right (I think because there's no tie), but haven't quite understood how to do that myself (haven't looked into it too hard.)
It's not going to be in D:OS2 anyway because 4-character RPS wouldn't work (or would be really tedious).
RPS is an interesting if subtle game for sure, but I don't think Larian is really going to develop a sophisticated enough AI for it to actually take advantage of the possibilities of RPS.
Also, a big problem with any kind of random checks, or even semi-random, like a smart RPS AI, is it's hard to resist savescumming them, especially if it's only the occasional thing (unlike, say, savescumming every time you try and apply CC.) Things like honor mode can stop this (though not even sure if that autosaves after a dialog), but hardly feasible to expect everyone to play honor mode on a 60+ hour game. Not sure what Larian will go with for D:OS2, especially for 4-character decisions, but maybe they'll do a different kind of part luck/part skill game that can include 2-4 characters. It'd be cool if it actually sort of related to charisma, too, like it was a sort of word-game thing that somehow represented arguments.
