I'm also a woman who liked the Pre, and is looking for an upgrade on Sprint, although I currently have the Moto Photon. The Photon is a little bigger than ideal from my perspective, and I looked at the Galaxy 3 and 4, and the HTC One in despair, as they are so large.
But I need a phone that can be used internationally, and not at Sprint's crazy-high rates. The Photon came with an unlocked GSM slot, and that's been great, but I really want the same on my next phone. I may care enough about that feature to leave Sprint over it, if I can't upgrade to something similar on Sprint. Eagerly waiting to see what options are available in the "mini".