I think you are all missing the point and are skirting around the answer even though it has been said. Neither RTwP or Turn-based mechanics have anything to do with whether a game sells well or makes a good game. It is the story. If the story isn't done well then it doesn't matter what mechanics you have, what computer you use, the size of your graphics card, or whether you live in a luxurious mansion or your mother's basement. (sorry had a Tommy Lee Jones moment.
)
If the story isn't good, word of mouth will rule the day. The same applies if the story is good.
I've made that point, myself. But when using an established series name, which is only done because the name actually stands for something, it's also important to live up to that name and to not abuse it. Baldur's Gate is a RTwP series, made such out of creative desire and conscious preference by BioWare. The fans of the series know RTwP to be a part of the identity of Baldur's Gate, and those who've hoped for sequel for decades generally want to play a faithful Baldur's Gate game and not a clone of another series that has merely co-opted the name of Baldur's Gate.
BTW, it took Divinity: Original Sin 2 two-and-a-half months
to sell 1 million copies. After just over 3 months, Dragon Age: Origins
had sold 3.2 million copies. So, DA:O greatly outsold D:OS2. And that's not even counting DLC: DA:O also sold "well over" 1 million copies of DLC within its first week of release.
So, Dragon Age: Origins, which has RTwP combat, was a lot more popular when it released than D:OS2 was when it released. Therefore, going by the weak 'this game was more popular therefore its combat system is preferred' argument, RTwP is the more preferred combat system. So, if Larian are just making "BG3" for a cash-grab (which appears to be the case considering their "BG3" is actually D:OS3), they should be making it with RTwP combat, anyway.
