You can take as many seats out of the Thomsonfly B767 as you wish but whilst those remaining stay in a 2-4-2 configuration, it will still be an extremely uncomfortable aircraft.
I feel Thomsonfly are simply reacting (very reluctantly) to the positive reponse of FCA passengers in the most economical way possible. I do not believe for one minute that prices will not increase, that's just not Thomsons way of conducting business.