Will we get the option to choose a female protagonist in the future? That would be really cool.
I like this idea but it would be a ot of extra work for the dev.
One of the girls would have to have regrets and travel back in time, although Isabelle seems likely for this, as she wasn't supposed to be there in the original timeline... then again both the teacher and assistant teach weren't there first time around either.
Other than this some extra writing, coding, and new art would be required for a female playthrough.