Not sure if you played the current one but it didn't have that much grind and a big part of it was the daily's don't work right always which should obviously get fixed at some point. They did say they will improve it further but so far nothing at all indicates any type of paywall to deal with content unlocks. They will have an afk grind function, too.
It does look like it will be largely a sex viewer, but so is most Illusion games, VaM, and most other popular sex games. If you want gameplay you should look for another game, or really something that isn't porn.
What are you on about? The current build is grindy as absolute fuck, which is a real achievement given that it contains virtually zero content.
I'd also say the implementation of a literal paywall is suggestive of the fact they'll be having a paywall... unless you think the in game store is going to be so you can do your grocery shopping whilst jacking off in FD multiplayer.
Illusion games and VaM are also largely built around supporting mods, which extends the games. This game does not and will not support mods.
Although that's a bit of a moot point since this game was initially sold as a puzzler/lovecraftian themed horror game with porn elements, then as an xcom style battler with brothel/management sim elements, then as some sort of team based card battler... but sure, the people that paid for this game as advertised should just fuck off and play something else when Helius can't deliver.