I think they'll keep going until the licence or sales dry up, which by current standards is a few years off yet I imagine. We have the WB catalogue to pull from too, should we need to. Our reputation for non Lego licences isn't so great though, so I'd hope they'd learn from what we've achieved on these, moving forward.
As for moving on, to where?! Most UK places are either churning out the same thing each year (*cough* EA) or its non stop FPS which doesn't appeal to me at all frankly. I'll have to come up with something else or move abroad..