Could be, yeah.
It does add to end-game content, and it can be expanded upon to add some horizontal progression.
I don't know anything of game development, but you could cut VIP room, alternating outfits, and minigames from that, and I think it would still add meaningful content.
I feel there is room to integrate the in-game Starmaker platform further into the current version of the game, and I hope some of this could be part of the 2.0 release. The other Stars have been surprisingly absent, so would be nice to actually meet them at some point.