I think it really is up to the fans who the mascot will be, even though bandai has the final say. To them, they will not make, say, pompomtchi the mascot because somebody tells them "I WANT POMPOMTCHI AS THE MASCOT ASDFGHJKL". There could be some people who want to bring back the Osu Mesu characters as mascots, and some people who love himespetchi. With all businesses, bandai is just trying to do what their demographic wants, and himespetchi and Lovelitchi are what the demographic wants. You don't have to like Lovelitchi and himespetchi, and it's perfectly legit to say "I hate Lovelitchi!" because we all have our preferences and our dislikes, but it will not make bandai do an about face and make a different character the mascot. As long as girls are the target audience to bandai Japan, Lovelitchi and himespetchi are here to stay.