OK looking around on something that you "would look out on a ship" came across a bit of new about Tim Burton visiting TDL HMH for the frist time back on Oct 21. From the sounds of it he really like it and the last line of it quotes him as saying "are they going to do 'Nightmare Space Mtn' next? I look forward to that"
From the sounds of that the rumors of HMH leaving soon are very much rumors. Now you can take it for what you like but if it is TB that is upset about HMH and wants it gone after next year, I would not think he would be kidding around about it.