Speaking of Homo supreme. Will lesbian/bi stuff be optional?
This has a lot of factors, but pulling from the Discord and previous discussions, I can cover most of it.
Their "artists currently do not feel comfortable drawing male-on-male content". So at this time that particular avenue of bisexual activity is not in the cards. Likewise, while there has been interest in a female player character, this would essentially result in making two games at once so is not presently in the cards.
For the Love Interests themselves, almost assuredly although on what time table depends on a lot of factors including art asset availability. The game itself already includes activity thresholds for lesbianism, so it can be safely said that the Dev Team was looking at implementing this in the future. However, it is worth noting that while this is something that is coded, the actual use of the thresholds is not implemented.
Also, just a disclaimer, I am not one of the Devs. So while I can look through the code and see what things are in the code, this does not mean that every feature that was considered and given a placeholder is in the code will actually be implemented. Likewise, since the game is still in development with an expected overhaul in v0.3, a whole lot could change.