This news comes compliments of the Engine of Destruction site. I was not even aware this is happening. Apparently Marvel wants to make sure EVERYONE has a chance to experience the Planet Hulk story line prior to Thor: Ragnarok releasing in November.
A novel, being written by none other then Greg Pak (the original writer of the graphic novel), is scheduled to be released October 17th, 2017. Which should allow fans old and new about two weeks to read before going to see Ragnarok.
I would imagine this novel to have a few tweaks on the narrative to give something new for the old fans. But overall I’d expect it to just be the graphic novel without pictures. In any case I am very tempted to buy and read this just on the off chance he sneaks something in that may connect with the movie. I doubt it, but perhaps I’m just trying to justify paying for and re-reading a story I’ve read a hundred times before.
The book can be pre-ordered on Amazon here.