On the latest episode of The Disney Dish Podcast, Jim Hill says Runaway Railway "may arrive in the same window of time" as the O Canada update at Epcot, which Len Testa currently pegs as mid January.
I think January's a really weird time to try to open a major attraction (because wouldn't you just try to get it open a month earlier for the holiday crowds?), but we'll see what happens.
Given that I'm going in late January, I'd obviously love for this to be true. But I'm not getting my hopes up.