According to MKP's facebook page, MKP will be attending MLG Orlando. He will be competing in the Open Bracket.
From MKP's Facebook Earlier today:
Lee, Jung-Hoon (MarineKingPrime.WE) I think it's going to happen MKP will be going to MLG ORLANDO!
Later today:
Lee, Jung-Hoon (MarineKingPrime.WE) It has happened... the King is going to be at MLG Orlando!!! Thanks to Milkis!♥ Omg those are going to be the best days of my life!!!! MarineKing Fighting!!!!!!!! Gogo 1st Place or 2nd idc at least you're going!!!! ♥♥♥♥♥ (You can tell that i'm happy ^^).
EDIT: as posted below, the "thanks to milkis" is because Milkis opened a donation pool on reddit to support MKP to go to orlando.