The revival of the Dark Tower wasn't at all hurt by the development of the Stand and potentially other movies in the King Universe. Likewise the development of 'universes' as a whole are the biggest thing in hollywood at the moment.
McConaughey was first linked to Flagg in the Stand, and there is a real possibility that he is looking at this as a longterm project.
http://www.imdb.com/title/tt1648190/...=tt_cl_sm#cast (current crew list)
Aaron Paul is also rumoured to be circling Eddy.
I'm not a fan of Goldsman at all, and his current work on all of the horrible Transformers movies is a testament to his quality, but Grazer and Howard are solid (and I hope not too family friendly). It's interesting that they brought in two 'artsy' guys as writer and director. That could be a good sign.