The Darkness in STL is good, but I think it's overly marketed as my time there was just plain boring. They get extremely crowded on the weekends so you end up getting sent thorough in a constant line. Everything that pops out up ahead is revealed too early.
All of the coaster's parts have arrived, including the trains, and park officials have confirmed that they will be using the old trains via the Facebook page. Colors are still yet to be determined.
http://fox2now.com/2013/02/11/new-roller-coaster-at-six-flags/
The local news has a contest going for who can guess the weight of the boomerang pieces.