It's worth remembering that when there are seniors flying together, there's often one or two "uprankers". That's not to say there hasn't been quite a few flights recently operating with 3-4 permanent seniors.
There's quite a number of uprankers in LGW at the moment. We may not be overcrewed with SCCMs, but could we possibly have more "SCCM-qualified" crew than we really need? We do seem to be a bit short of FAs at the moment, and I understand LTN/STN crew are filling the gaps where possible at the moment, and training courses with new LGW recruits are starting this month, so should have new FAs coming online around December/January.
It will be interesting to see how the GB acquisition affects SCCM promotion opportunities for current crew considering many GB Assistant Pursers will bbe "in the pool" looking for promotion.