BDLBOS,
I would expect quite a few applications but perhaps not one per pier. The plans show up to four piers but I suspect the one nearest the M56 will be last as that area will be used for bussing so I could see an application for two or three of them at once with the other(s) to follow.
I could also see a separate application for the T2-T1 link, for demolition of bits of T3 and quite a few for other, smaller changes.
Overall, perhaps we'll see another 3-4 big applications with many smaller ones including amendments.