Mr A Tis...
Once the redevelopment of T1 Arrivals is complete (Mid June I think), there will be new landside shopping facilities down there. It's been a while since I have seen the plans but I believe there will be a Boots, larger WHSmith, Greggs bakery & a small food court located in the new arrivals shopping concourse. This was included in the arrivals redevelopment plan because prior to its inclusion, there were no planned facilities for landside staff or passengers on delayed flights and the airport (eventually) recognised that they needed to make previsions.
The same style of redevelopment will also occur in T2 Arrivals, albeit at a later date. I believe the plan for T2 will include a Boots & a 24-hour Spar in addition to the current WHSmith & food court.