Actually GOTG rebooted a year and a half ago with these specific characters and it's been selling very well from what I understand. I haven't seen the movie, so not sure what liberties they've taken, but I'm sure things like the Nova-Corps are very different from what we get in the comics. From the previews, it does look to me like they got the character personalities right across the team, which is really what Marvel has been doing across all the Avengers stuff. If you get a macho Stark, boy scout Cap, Regal Thor, and a Wise-cracking Star Lord, you can make the link to the comics while changing the storyline all you want.