Yea they probably just stay human, since Kureno isnt cursed anymore and he isnt a bird lol. You can read how she does it at Mangavolume.com! You can read lots of manga online there. I dont read manga online though, i just use it to check out chapters people say are interesting.

Wow...you know what would be funny? If that really happened in the story...

I think that they stay human and can't transform anymore when the curse is broken. This is a simpler and i guess kinda easier solution to break the curse, though! ^^