This sounds like an amazing, amazing idea for a game. Small and a little niche, but there could definitely be enough interest for it, and I imagine there might be some dedicated players. Looking over this and the last thread, a few thoughts;

1. This idea here, of players having the choice to have a character's 'original' memories start to slide is, is great. It gives a lot of flexibility to the players, and would make things more appealing to a wider variety of people.

2. Re: Mpreg. If you do decide to have it as a thing in this universe, given the setting, I'd think it would be fairly easy for characters to have been 'fixed,' as it were, to avoid any in-game pregnancies. If you want to avoid in-game pregnancies, that is. With the amount of body-mod you've indicated in other comments, it would fit right in with the setting.

3. I like the idea another anon had of betas being a 'true elite' class, and I think it could work for what you're aiming for. Betas could still be perfectly normal 'humans,' with their only extra being that they can scent other classes, and players could also opt to have their beta be upper crust/well off/high class enough to be a little more appealing. If that makes sense? idk