So, based aircraft wise.
Summer 17 had 9 based Monarch which are now out of the equation.
But, summer 18 will see:
Jet2 +2 aircraft
TUI +1 aircraft
Thomas Cook +2 aircraft
BA Cityflyer +1 part based
Ryanair +3 aircraft
Easyjet +5 aircraft (pending)
This means we are now 3.5 aircraft up on S17, not including any extra seats and new operators.