Something I've been thinking about regarding the Maul encounter-- will Kanan, Ezra and Ahsoka know who Maul is when they meet him? I mean, we all know who Maul is of course, but unless Kanan had an encounter with him during his apprenticeship with Depa Billaba that wasn't in the comics or Ahsoka ran into him during that sixteen-year gap in her history, I don't think any of the rebel Jedi will really know him by sight. Ex-Sith Lord and war criminal or not, Ahsoka was only ever shown hearing Anakin mention him kind of ambiguously in Brothers, Kanan's never indicated knowing anything about him either, and Ezra didn't even know what he was holding in Spark of Rebellion until Kanan identified it by way of demanding Ezra return the lightsaber, so he probably won't know anything about Maul at all.
And for some reason, I know that quote was a RotS exchange between Obi-Wan and Vader, but all I can think about is Poe's "Who talks first?" line from TFA... Maybe I've been re-reading the TFA novel too much while obsessing over-- I mean, thinking about how long a wait it is until April 5th gets here. I preordered the DVD. :)