While Jason Flemyng might be just one of the many cast members of X-Men First Class he is also a very good friend of writer/director Matthew Vaughn. Jason has starred in every single film that Vaughn has made [Layer Cake, Stardust, Kick-Ass] including films he's produced [Lock Stock And Two Smoking Barrels, Snatch]. The actor who plays Russian mutant Azazel [father of Nightcrawler] gave an update to DigitalSpy. Jason states the box office success of First Class is the main reason the studio is moving forward with a script. Adding that it's DVD/BluRay sales will ultimately decide if the sequel will be made. It ended up making $353 million worldwide and another $30 million during the first week of the DVD/BluRay being released.
"There was a benchmark that they had to hit box office-wise before they could start writing the next one, which they've started. We'll just see how the DVD goes and then fingers crossed I'll be bright red again by next summer."
Actors James McAvoy and Michael Fassbender have stated they're on board for more films. There have been ideas tossed around for the sequel like Magneto guiding the magic bullet that killed JFK for an intro sequence. It's expected Azazel (Flemyng) and Mystique (Jennifer Lawrence) could explore their characters' relation that leads to Nightcrawler being born. Along with the formation of Magneto's Brotherhood of Mutants. Jason also threw out the statement of production possibly starting in the summer.
"Me and Jen Lawrence have a kid, don't we? The world is a wide place and if my son turns out to be Alan Cumming then good for him, that's great. I love Alan Cumming."
"I am so in his gang [for the sequel]. There's one shot at the end of
the film [with Magneto] and I was like, 'Please let me be in the shot!'
And there I was. If there is a sequel, I have to be there."