I call dibs on Larxene's somebody's name being Elenar. It'd be a clever nod to the Final Fantasy VII character of the same name.
I mean, it's possible. But her name is "Elena", without the "r". Axel/Lea is based on Reno, from the same game and they're in the same organization (the Turks). Axel and Reno also share their voce actor: Quinton Flynn.
Edit:
YES! Now I only need Dilan to return in Radiant Garden too.
I think that's pretty much a given.