I haven't read the entire thread, so this has probably been canvassed earlier.
Jetstar is picking up a lot of routes/expansion. When they are doing a high enough percentage of the total, Jetstar aircraft will be rebranded QF, and the few QF staff left will be offered packages to unload them.
I hope it doesn't happen, but I see it as inevitable.
The unfortunate part of all this is that it won't lower the cost of travel, just improve the bottom line.