If it wasn't out in the open for so long, I think the SuperWhale (tricked out MC80) 2+3 build would have won Worlds. It's still a top build in my opinion.
I think Ram City is a strong counter to the above.
So, my 100% wrong prediction is that a 2x ISD build which should be strong against Ram City will reach the Final Four and win it all.
What do you guys predict? Good luck to everyone (Sorry, JJ... no repeat champs! LOL) Also, how's the international representation (given the short season cycle)? Will 2+3 carry the day?