Apparently you missed the official response OP.

Yoshida said in several interviews that "they are not saying 'no' to completing the missing genders". But that he isn't making any promises either. In other words, if they find the time and resources to do it, they will. But if they can't, they won't.

The important thing is that they aren't saying "no, we don't want to do this", because they would like to if they can find the time and resources. Just don't expect it until much later (likely at least 6.0)