The form is very similar to last year. Request 4-8 fandoms. Offer at least 4 fandoms. Specify which kinds of fanworks you want to make or get: fic, art, graphics, or amvs/vids. Have fun!
The rules and FAQ are now updated on AO3 at the Parallels 2015 collection. I will also answer questions on DW and LJ and by e-mail (email@example.com).