As long as there aren't too many new girls, I'll be content with the ones we have currently (I played the game while there was only six). That's one of the big reasons why I quit playing Lewd Town Adventures - there were too many love interests and too much time to care about all of them.
I would rather play a game with a limited cast that makes me work hard to earn their affections than a game that gives me more love interests than I need.
As long as the quality of the writing and the gameplay remains solid, then that's all I need.