I went to a convention and talked to Wendy Powell (Envy) this weekend. She said right now they're recording her inside Gluttony's stomach, and in her last recording session they ended with her saying "Oh great, I'm stuck here with you two!" I also showed her the page from the manga where Envy transforms and had her read the dialog for me, but she asked I not upload that on youtube so out of respect for her I won't.
I don't know if there was debate or speculation on this or not, but she said "I already voiced my fight with Ling." So if any of you were wondering how funi was doing his name, there you go :P