Here's what we have so far. It seems quite likely that Isabelle will have four costumes based on her Summer outfit, and another four based on her Winter outfit. With this in mind, it could be assumed we have yet to see two Summer outfit alts, and two Winter outfit alts. So out of these, which is your favorite, and what do you hope for? My personal favorite thus far is her pink Summer outfit, and I hope that a light blue Summer outfit is something she'll have.