One would certainly hope so, seeing as how it's London and all. And hey, if Voldemort and Mary Poppins are going to face off, anything can happen!
I have plans tonight and may not be able to catch the entire thing. But if you watch and happen to spot anything Dickensian, drop by and let us know!
Update: I don't have access to a live feed, and this isn't being televised live here, but I hear Kenneth Branagh showed up as Scrooge. So there's that! Will put up pictures and/or video when I find them.
Update: Thanks to commenters Elizabeth and Zeb for reporting, respectively, that Branagh was attired simply as Generic Victorian Gentleman, and that all we got of Dickens was a teensy clip from David Lean's Oliver Twist film. How depressing. Dare we hope for anything in the closing ceremony?