Have just been taking a look at Jet 2's early plans for Summer 2017 (based on August when compared to August this year)
I know that it still early and there is still time for a number of changes, but based on what is currently available as per the online timetable there are planned to be 815 x weekly departures (up 96 x weekly when compared to August this year)
There will be 234 Airport pairs, compared to 203 this year. There are 37 new routes (with 15 of these coming from the new Birmingham Base) with 6 dropped routes for a total of 7 x weekly flights (the dropped routes appear to be Belfast to Murcia and Pisa, East Midlands to Bodrum, Edinburgh to Dalaman, Glasgow to Bodrum and Newcastle to Bodrum.
Overall weekly departures are ......
Manchester - 203 (-14)
Leeds - 159 (+18)
East Midlands - 102 (+16)
Newcastle - 96 (+2)
Glasgow - 81 (+2)
Edinburgh - 76 (+12)
Birmingham - 57 (NEW)
Belfast - 41 (+3)
All Airports see an increase apart from Manchester, although I assume the total number of seats through Manchester should be up as A330 operations are scheduled to commence to help compensate for the loss of 14 x weekly flights, with the additional number of services appearing to suggest extra based units at East Midlands, Edinburgh and Leeds Bradford