Guardians of the Galaxy told a similar story to many superhero team-ups; a group of clashing personalities figures out how to work together in order to save the day. The difference between the Guardians and a similar group, like The Avengers, was that these folks would hardly call themselves heroes. Criminals and rogues, the five Guardians were almost enemies before they first decided to team up (and that was in order to break out of prison). Eventually, though, they managed to work together to literally save the galaxy.
Now they're at it again in the upcoming Guardians of the Galaxy 2. Taking place just a few months after their initial adventures, the team has remained together. Even Groot (sort of) in the form of Baby Groot. From the look of things, they will once again be tasked with keeping the galaxy safe, though they may be in over their heads. Luckily - or not- they will not be working alone; Gamora's sister Nebula, Star-Lord's abductor Yondu, and new character Mantis are all expected to join in on the fun. But for how long?
Comicbook.com has revealed a quote from executive producer Jonathan Schwartz explaining that there might be additional Guardians by the end of the movie, although he only used the singular tense:
"There are a few members that will be helping the Guardians out along the course of this movie. Perhaps by the end of the movie, someone will have joined them on board."
We know that Karen Gillan (Nebula) and Pom Klementieff (Mantis) will be back in Avengers: Infinity War, and recent teases hinted the same for Michael Rooker (Yondu). This would suggest the full trio remain on the team, although given how Schwartz didn't specify how many new members there are (and used a singular term), that may not be the case, with some characters parting ways. It's indeed possible they're in the mega-sequel in a different capacity - this is particularly true of Nebula, who as the daughter of Thanos has a bigger link to wider plot (and in the original comics proved essential to taking the Mad Titan down).
What's also interesting here is the possibility of a different character joining the mix. The new Guardians' being part of the team feels pretty established, so it would be strange for their long-standing position to be so teased out. The marketing for Guardians 2 has been rather spoiler-free so far, so it's definitely possible. That said, this interview was from a set visit last year, so it was before much of the previously stated information was known.
At the very least, the Milano is going to have to get a couple of new bunks added when Vol. 2 arrives in May.
- Guardians of the Galaxy Vol. 2 (2017) release date: May 05, 2017