Well, as we know only too well, sites take these speculative articles and report them as fact, completely ignoring that they're only speculation. Though there is one part of the article that I suspect could definitely be fact and that's the part about how Warner Brothers wouldn't be happy if Burton picked up another project and they would push to get the Depp/DS film made first. WB may have no say in whether or not Burton could make a deal with DreamWorks with the DS film pending - but I strongly suspect they would be royally pissed if he does and then decides to do
Monsterpocalypse instead. After all, WB stood by and patiently waited for Burton to become available while he worked on
Alice In Wonderland because they really want him for the DS film. If DW is equally adamant to have Burton, let them get in line behind WB.
The only way I can see for DW to get Burton first is IF Depp decides he's too exhausted after the Pirates 4 shoot to do DS justice and he needs some time off beforehand. Only a situation like that wouldn't make WB want to tar and feather Burton.
I'm sure they wouldn't be happy, but I think they'd be willing to accept it...