Executive Producer of the Medal of Honor reboot, Greg Goodrich, has just revealed that they're already working on a sequel, and that it's being developed again by Danger Close.
Goodrich originally stated that unless Medal of Honor sold 3 million copies, they wouldn't be making a follow-up. But EA recently revealed that the title had managed to sell 5 million, they were given the green light to get cracking.
No other information was declared other than that and you can read Goodrich's blog post by clicking on the source.
Source: MoH Blog