That's true if your market is only the average CRPG player. The intent of RtwP in Baldur's Gate was to translate the pen-and-paper experience in to something that more people would play. I'd argue that the proliferation of action-RPGs is a pretty good indicator that the majority of video game players are not interested in turn-based game play. The challenge being can you lure people in with RtwP or ATB mechanics that otherwise wouldn't play turn based games?
No, is the answer.
That wasn't true in the '90s because they weren't trying to lure in action-game players. They were trying to lure in
RTS players. RtwP doesn't work on action players. It never has. Same for ATB. There's a reason FF16 is basically a DMC game with RPG elements rather than using ATB.
And re: turn-based, well, whatever you think, modern turn-based games sell extremely well, whether they're Divinity: Original Sin, Civ, XCOM, Battletech, Midnight Suns, Gears Tactics, Darkest Dungeon, Fire Emblem: Three Houses, Triangle Strategy, Into the Breach, Yakuza: Like a Dragon (which moved from action to turn-based, note, to great applause), Persona, Dragon Quest or whatever. They outnumber RTS games many times to one. Probably more than 10 times to 1. The RTSes which did so well in the '90s are virtually gone now. The last major one was StarCraft 2 in 2010. It's not really a thing any more (there have been some failed AA attempts and a some nostalgia remakes/enhanced versions but...). Whereas turn-based is.
The only place real-time strategy really survives is Paradox games and settlement builders, both of which have a much more hands-off approach and one that's not really about controlling individual units.
So the RtwP isn't even a real option at this point. Your choice is action or turn-based, and you can't do D&D well as action (as the Neverwinter MMO rather shows, unfortunately).
I guess my point is I don't see RtwP dying out.
I mean,
it already died dude. Apart from Paradox games and settlement builders.
As far as I know, there are literally no major (i.e. even AA) RtwP RPGs on in development. Owlcat abandoned it entirely for turn-based with their new 40K RPG. They were the last hold-out. No Kickstarters or similar for any RtwP games.
So I read a couple of threads - there is literally one game - Dark Envoy -
Now I will say, these are the people who made the only other genuinely clever RtwP game of recent years (sorry Pillars of Eternity 1/2 you were great games and your RtwP was well-designed but it was old-fashioned and clunky partly by design), which was Tower of Time.
I've got this wishlisted and I expect it'll be a good game, but that's it. Whereas there are hordes of turn-based or action-based RPGs on the way out in the next couple of years.
I guess DA4 might come out and might
technically be RtwP? It could happen!
And no, this isn't a pendulum situation. It never was. RtwP was popular because of RTSes, not because it was a natural mode. The designers of the BG1 even discussed this. It's possible that turn-based with ALSO die, but unless DA4 is the biggest smash hit in history, and is severely RtwP, I don't see anything in the near future for RtwP in party-based RPGs.