You have to think that "some point" needs to be quite soon, as I don't think any of Condor's 763's are younger than about 22, and a few quite a bit older.
You would also think that if Jet2 were to be venturing into long-haul, they would do that first by leveraging their existing relationship with AirTanker for 330's (saying that without any knowledge of how that stacks-up financially)