It makes perfect sense for Jet2 to consolidate into one SAT at the very least for their own company logistics,they are consolidating at MAN although under different circumstances perhaps.
It would also make sense for the customer/passenger with whom we know Jet2 have a very good industry reputation...very good with families.
However...which SAT?...not only just the unused space on the passenger level (during waves as they exist at the moment anyway) there is the forbidding task of stand allocation & usage throughout the day for other operators.
Allocation & optimum usage is also a major reason for the now approved mid-field stands construction (temporary holding or penalty boxes as the Americans refer to them) to ease bottle necks awaiting actual contact stands on the terminal or departures waiting for ATC R/W slots.
At the recent planning meeting & approval MAG/STN were very keen to emphasise their ambition for free flowing movement of aircraft around the terminal.
The offer of a SAT to a specific operator is not new of course witness RYR & under the BAA (& not made public ) SAT 2 was offered to Emirates to reallocate their London ops & were informed they would have a "free pass" regarding the fit out.
The STP (Stansted Transformation Project) both landside & airside is certainly going to be interesting although a 2/3 year project at least.