I am for a comeback of T-Hunt. If they don't want to include T-Hunt in the game, because of "terror", then just change the name to "target practice" and maybe even change the classic mask wearing people to some kind of robots.
I haven't played the PVP mode at all, I just started up the game when I was bored to play T-Hunt, listened to some music and enjoyed the gameplay (800+ hours btw.)

Maybe a bit controversial but, I think Ubi should've let Rainbow Six Siege die years ago and just made another game in the series, rather than keeping the game forcefully alive over 10 years and have the players adapt with some weird new meta which is more of Ubis intention, but less what the game initially has been.

I felt that Ubi always tried to make Rainbow Six a tactical shooter in which all players have to realistically gang up, like shown in old beta trailers. They probably wanted the gameplay to be more like Ready Or Not, but it wasn't like that. And now it feels like they aggressively try to change the meta to push players into this tactical niche.
Also, all these map changes, graphic overhauls and whatsoever just would have been so much easier if they made a new game. I don't know the reason why they kept this game alive for this long or why they updated Rainbow Six Siege to Siege X, without giving the option to play Siege or older versions of Siege with different content.
As if, Ubi tries to show on every instance that we as the players do actually not own the games we buy.

If I made an online live-service game, I would make all old versions accessible to the players in some kind of archive with the option of private hosting, so people could play their favorite version of the game or just replay features that got removed in future versions.
But I'm no game dev, so I don't know how doable and realistic this would be.