well, sc2 is fun, so I'm sad to see the proleague go, even though I didn't really watch it (except some high profile matches here and there).
the point is that it's still alive in the foreign scene. there's still some stuff going on in the korean scene (most notable, kespa cup), but not as much, especially now with the teams disbanding. many players will probably retire and go on with their lives (or go to the army), some will go to bw/lol/overwatch, and some will find some new sc2 team.