When you go onto these operator sites they are still using TCX as the flight codes not MON.
First Choice will be using TCX flights as usual, no sign of a MON based aircraft.
Airtours are going to base just the one aircraft A320 with excel picking up most of the work.
Im not sure if there webside has been updated yet from TBA to which airline it is going to be.
Most of the flights on the website have been updated. Will be 1x Based MYT and 2x XLA aircraft, one of which will operate mostly for MYT. I think MYT are also buying seats on some BY flights (such as Rhodes).
Haven't heard anything about Luxor or Pula.