The Centurion director told DS that he and producer Sam Raimi are planning to move forward with the 3D project in the coming months.
He said: "[It's] about people exploding in 3D, which should be a lot of fun! I'm doing it with Sam Raimi. It's called Burst, hopefully going into production in the summertime."
Asked about the chances of another Descent movie, Marshall admitted that he doesn't think there is enough scope to make a second sequel.
"Not that I'm aware of," he commented. "I honestly don't know, that's a question for [distributor] Pathé and the producers as to whether that saga's going to go on. I don't know where you can take the story from this point."
Click 'play' below to watch Marshall discuss Burst and The Descent:
Additional reporting by Stella Papamichael
> Click here to watch our 'Centurion' interview with Neil Marshall