On The Road isn't the only Kerouac movie in the hopper. Kill Your Darlings is shooting on location in NYC according to this article. And, as reported previously here on The Daily Beat, a movie adaptation of Big Sur is in the works.
Regarding KYD, I am definitely a fan of casting Jack Huston as Kerouac. He is awesome in Boardwalk Empire, and I can see the resemblance.
P.S. I am aware that there are those who resist any attempt to turn one of Jack's books into a film. My retort is simple: Jack himself wanted it to happen, at least for On The Road. He even knew who he wanted to star in the film (click here to see the letter he wrote to Marlon Brando).
So, save your drama. Especially The Gothamist, which has already posted more than one diatribe against the upcoming On The Road adaptation (without having seen it).
Yes, Kerouac is for reading, yet even though I think that, I will still go see Kerouac-based movies. And that's coming from the #1 living Kerouac fan (with a few possible exceptions).