I'm not sure yet - given the size of that studio (i.e. tiny) and the fact I can't imagine them wanting to do much in the way of striking sets, they'll probably just hide the C4 set in some way. Don't forget, ITV's The Sunday Edition came from Studio 6 in 2006/07. That programme also did a pretty good job of hiding the C4 set at the time.
Apologies if it has been mentioned already, but thought it's worth pointing out that Emma will present every Tuesday and Friday, while Nick will front the show on Wednesdays and Thursdays. The pair will alternate on Mondays.