I am just thinking aloud, but I am not sure about this option. Try to do this option or at least ask someone in-the-know if this can work out to your advantage, since I also understand your situation and your concerns at the present.

Here it goes, first check if your wife can transfer her sponsorship from you to her present employer/ sponsor. Then, she will not be under your sponsorship in the event that you loose your job. Then, if she qualifies, she can sponsor you instead or apply for family visa with your wife as your sponsor. Just check, maybe it would work. But like what I have said, I am not sure!!!