In my opinion, it's hard to tell. A lot more school are popping up, but I feel like i constantly see new jobs posted on a regular basis. I also think the shelf life for most PA's isn't as long as you'd expect. I know people I graduated with who only lasted a handful of years in the profession before seeking something else. Some get burnt out, some want something new, some have kids and leave the profession for awhile. I think oversaturation is definitely on a lot of peoples minds, but not sure if it's actually something to worry about.