Headcanon: one of the first things Vaggie did to reclaim an identity for herself outside of being heaven's soldier is to try more feminine clothing, something she never used to let herself wear because it's impractical for a fighter(like growing her hair). It was an awkward transition, but Charlie's very enthusiastic encouragement helped Vaggie love her new look.
Ace wakes up on a random island two years after his death as a ten-year-old. But he has no memory of his adult life. Sabo just died, and he has a little brother to look after. Or maybe an older brother?
There is a bit of time between Ace waking up and Luffy finding him.
Sorry this is so long I'm still trying to figure out how to do comic-y things.