Director James Gunn has revealed that the expertly groomed Spartax ruler, J'son, will not make it into the film's sequel, due out in 2017. Gunn stated in an interview with Empire that he has something else in mind when the time comes to reveal the identity of Peter Quill's father.
"There have been a lot of documents passed around about who Peter Quill’s father is between a select two or three of us. That’s been part of the plan since the beginning, that’s something I had to work out before we shot the screenplay. We wanted to make sure Yondu’s place in everything made sense and it does, so it’s all very specific stuff. It’s definitely not the character who it is in the comics, I’ll say that much." - James Gunn
So with that being said, let the guessing begin!
The sequel could use this opportunity to introduce another character from the original Guardians lineup, and Major Victory's easily the highest profile member of that team. Originally born Vance Astrovik, this young man from the 20th Century found himself flung far into the future where he encountered the ragtag team that would go on to form the first Guardians team. Vance eventually found his way back to the modern day Marvel U and joined up with Quill's newly formed team. Honestly, most of his comic book backstory doesn't easily map onto what we know of Daddy Quill, but that doesn't mean he should be ruled out.
Another member of the original Guardians team, we really see how Starhawk could get mistaken by Peter's mother for an angel. The guy's a winged alien creature of light, and he's also been a bit of a jerk at times. Starhawk also possesses the powers of a mysterious hawk god, and the upper limits of his light manipulation abilities have yet to be seen. Because he's an all-powerful Hawk God-empowered light being from the far future, one could see how the Nova Corps would have absolutely no record of his existence or the existence of anything like him.
If Quill's dad is older than anything on record, then what if he's actually older than anything ever? Eternity actually is all of reality given sentience. It has no form or body, and can make pretty much anything it wants to happen happen. If that seems like too heady of a concept to introduce into the Marvel Cinematic Universe, remember that this character first appeared in the pages of Doctor Strange's ongoing adventures.
It's shocking that he hasn't appeared in a movie yet -- except he has. Gunn confirmed that Warlock's cocoon appeared in the Collector's collection in the post-credits scene of "Thor: The Dark World." It's also telling that Gunn says the identity of Quill's father has been part of the plan since the beginning; odds are they wouldn't put that much forethought into his parentage -- and go to the trouble of deviating from the source material -- for an unimportant character. Warlock's a major player -- much more so than Starhawk, Eternity, or Major Victory.
Yes, this one may be unlikely because he is Kree and Nova Prime specifically said they couldn't find out what Quill actually was, but it would still be a pretty cool way to introduce him.
This is probably the most unlikely of the following, however making Quill the forgotten son of Odin would both allow for the Norse adventures to continue in another franchise well after the "Thor" series ends. Odin is both ancient and not a human; it's not unreasonable to assume that tales from Asgard have not reached Xandar and the Corps. Plus, we could see how any being arriving on Earth via the Bifrost could be perceived as an angel.
And now, it is time to vote!
Major Victory vs Starhawk
Eternity vs Adam Warlock
Mar-Vell vs Odin
If you think it may be someone else, reply below!