Not that I know of, but I'm sure he will be. I actually ended up liking Vega, too, which surprised me. I was skeptical about him because he was this new guy butting into the story at the last minute, and I was worried that he'd take away time from other squadmates. But he was actually surprisingly fun. I only used him on a few missions this time, but I do plan on using him more on one of my playthroughs, eventually.
I'm just hoping it turns out better than EA's other attempts at animating their games. The Dead Space and Dante's Inferno films weren't that great.
More comics: http://www.darkhorse.com/Comics/20-458/Mass-Effect-Homeworlds-1-Anthony-Palumbo-cover Mass Effect 3 lead writer Mac Walters kicks off a new series of single-issue stories featuring heroes and adventures essential to the story of BioWare's latest blockbuster! Each issue will star one of the main characters of Mass Effect 3 in a story written by the BioWare writer who wrote that character in the game—beginning with a Mac Walters-penned tale of brash young gun James Vega!