Having taken a look at the actual planning application
, and more specifically the 'GENERAL ARRANGEMENT - PROPOSED LEVEL 1' document (can't directly link as it seems to expire), the following attractions/facilities seem to be included;
- LEGO Factory Tour (with preshow)
- Dark Ride - potentially Kingdom Quest Laser Ride as at LDC Manchester, with inclusion of Court Jester minifigure on plans
- LEGO Friends Olivia's House
- LEGO DUPLO Farm
- Merlin's Apprentice Ride
- Physical Play area - potentially something similar to LEGO Fire Academy/Construction Site at LDC Manchester
- LEGO Racers: Build & Test including Earthquake Table
- Creative Workshop - potentially Master Model Builder as at LDC Manchester
- LEGO 4D Cinema
- Birthday Rooms
My prediction is that Birmingham will become a new merlin cluster...
There is a 'Cluster Office' shown on the plans, possibly suggesting that those are Merlin's intentions.