Hi. I worked this season with TUI based at MAN and will be back as a rejoiner in 2019.
Basic, commission, flight pay and bonus are all pretty good, even better if you get any overtimes, that will all be explained in your training.
I doubt you'll be extended in your first year, we all finished on 31/10.
We weren't trained on the 787 and there's still a few years worth of PPYs who still aren't trained on the 78 so my guess is you'll be 73/75/76 like us.
When TUI retire all of the 757/767s which is supposed to be 2021, we'll all be trained 737 and 787.
Hope this helps, see you on board next year!