Something diverse; dating sims are usually only targeting one audience. I.e. girls, guys. I think they should be more inclusive; it is the 21st century, I’m sure a lot of people would have no qualms with a dating sim that would allow for the gay/lesbian community to equally enjoy the game without targetting the game primarily at that audience (let the player choose their gender/romance partner). That way everyone’s happy. Besides, I’ve noticed that published choice games have strived to do just that. But as far as dating sims go, that diversity has yet to be seen. And besides CoR, there is no choice game focusing solely on romance (i.e. maybe a modern-day high school or college romance game, or something to that effect).
Just my two cents.