A word of caution regarding chasing the quickest upgrades today.

I was at a couple RJ operators at the start of my career, jumping from one to another in search of QOL. At the time, my expected upgrade was on the order of ten years. I went on to fly cargo (and still didn't upgrade!), and in the meantime, both the carriers I was at signed new aircraft orders and I would have upgraded at about four years at either one.

IF Xjet survives, anyone still there could be in a very good position for a quick upgrade. "Difficult to see, always in motion the future is."

If you're going to switch, go to an airline you wouldn't mind being stuck at for a while.