I made an account just to comment because this game is incredible. As for suggestions on transformations I'd love to see for realistic hopes I think age progression would be great. For more wishful thinking hopes I'd like to see some anthro or racial transformations. And for uniqueness I'd like more combos like strength and fatutity changing dialogue and reactions to reflect the new bro/jock/fratboy style as well as when making Caleb a bear or Mark into a twink where they start to act more dominate or slutty reflecting these changes and combos shown in the achievements. Another fun game over option would be if all 3 players have fatutity and become to stupid to continue playing like with the 3 loyalty effects.
No matter what you choose to make next though I'm sure it will be incredible as i even find the kinks I'm not into so well written that's its just as interesting to read.