Despite a recent refurbishment, Big Thunder Mountain saw no real change. Many were expecting that there would be some interactive elements added to the queue area, much like Disney did with The Haunted Mansion.
Disney have however now confirmed via the Disney Parks Blog that Big Thunder Mountain Railroad will in fact be seeing interactive queue area elements in the near future:
Our friends at Walt Disney Imagineering just shared with us that Big Thunder Mountain Railroad in Frontierland is next in line for such an addition. When it opens, guests will be able to participate in the story of the Big Thunder Mining Company like never before. It’s guaranteed to be a blast!
Whilst no timeframe or real detail as to what these 'interactive elements' may be, you can guarantee that it'll make the time spent queueing for this popular attraction a whole lot more enjoyable!