I think Sandra is adorable, and I love the updates for her path. Ofc, I love updates to all of the paths. We should for sure see more with Adriana and Haley (solo) before the game finishes, so that's nice. I'd actually love to see more with Lisa especially, and if we could squeeze in more time with Alana and Diane, that would be great. But TBH we've been getting updates for the three women I most want to see — in order of my preference: Sandra, Haley, Adriana — so I think I'm gonna be happy with the endings available when the game is completed.
I do feel like, even if this is initially considered "Complete" soon, if there isn't more content for the other girls (Lisa, Alana, and Diane), Viit should continue working on this from time to time while working on a new project, so that a bit more with them can be added (like a DLC for standard story-based games or something). It feels very strange to build up the MC's relationship with each of them a fair amount for about half of the game, only to then nearly completely abandon them for the last half. Even if someone like Diane is merely a fuck buddy, unless Haley vehemently objected wouldn't you continue to have occasional hookups together? Especially in any case where Haley was included (like Diane's pole dancing demonstration), I can't see Haley shutting down the opportunity to get frisky when offered.