Last time I flew out of T2 most of the MON flights were boarding from remote stands as there were no terminal stands free. You have already posted pictures of the building site that is T2, and space is only going to become more constrained as the building work progresses (it's an inevitable consequence of work to an existing building - you have to take its out of service to join the new stuff on, which results in short term capacity issues).
There will also be constraints on landside as the works to car parks and the road network progress. MAG may actually be glad to have some breathing space in terms capacity for the next couple of summers.