Masters is top 2% of the active community... It doesn't go any higher than that in this game. The photos you see are from SC2. I'm in masters as well and was hoping for another division but I don't think that exists. And no I doubt they will have a pro league.
No http://www.mweb.co.za/DesktopModules/DigArticle/MediaHandler.ashx?portalid=20&mo duleid=5259&mediaid=6623&width=600&height=400 is not sc2. There is one past masters. It should be more like sc2 with gms being .2 percent.