It looks like there will be at least 10 based next summer.
Mon-Fri require 10 based, sunday currently needs 8, so some clear gaps.
Saturday is interesting, as there is definitely a need for 11 based at this time, with first wave departures to ALC, AMS, BFS, CFU, GVA, AGP, MLA, MJK, PSA, SOF and VCE.
Now, one flight could be shifted to fit back to 10 based, namely the early BFS which uses a BFS based aircraft the rest of the week.
The only one I can't be sure of is CPH. It departs at 1045 so I presume it comes back from an early Euro jaunt, likely an AMS run. If there is an aircraft sat around until 1045 (could be helping alleviate early morning traffic), then 11 based aircraft needed for most of the week.