RE: .325 WSM
I don't think it will be around that long. Just doesn't do enough or fill enough of a niche to remain viable. Like has been said it's not going to give any better performance compared to the 300 WSM or WM, the 338 WM beats it hands down and the 338 Federal while not as fast gives the availability of the same bullet weights that are more readily available. Personally I'll stick with my 35 Whelen.