Infinity Ward’s Senior CM Tina Palacios has stated in an interview with OXM, that the studio currently has no plans to make a Modern Warfare 4 at this time.
That’s not to say that Modern Warfare is gone for good, however. “I can say that our focus and only focus is on Ghosts right now as it is, and we have no other plans at this time,” she went on, adding that “when we were creating Ghosts, we really got inspired by Ghost from Modern Warfare 2, just by how he looks.
“It made sense for these soldiers we have in Ghosts who want to hide their identities would have the same masks and face paint. I think it would be safe for me to say that just knowing the characters from our previous games didn’t have a backstory, that’s what really pushed us forward. We thought we need to really establish that.”
Rumors have been circulating that Sledgehammer Games is working on a sequel to MW3, although nothing official has been discussed about that studios future games or plans.