If I were LFL, I would do this:

Put the 3D versions on track to be finished by the end of next year and get a trailer out with the 3D release of Jim Cameron's Avatar in December of '09. I'm baffled by how they'd get all six movies into the theaters, but if things are particularly slow in January and February, get it out then. It would be like '97 all over again. Then get the blu-ray on track to street by the end of 2010. It would be awesome if they included as many versions as possible, but if I could at least watch all six films in their original versions in 1080p24, I'll be happy. The live action show apparently isn't hitting until 2011 at the earliest now, so they could slap ads for the show on the blu-ray.

Of course, this is only what I would do in LFL's shoes.