Check out this link:
www.forbes.com/sites/markhughes/2012/07/...
Evidently, there will be a reboot. Honestly, I didn't think the last two were horrible movies. Could they have been done better? Sure.
For goodness sakes, they need to fix the Surfer/board relationship they screwed in the second movie. And, yes I was disappointed with Dr Doom. Doom needs to be bigger than life. He is only the GREATEST supervillain ever created. Only wish it was being done by Marvel studios.