I thought the 2nd wave was going to be late Q1 or early Q2 because the new Necron Codex is slated for late Q2 early Q3?
DE 2nd wave is supposed to include the venom.
Don't know about characters.
the Baron is just on a skyboard, albeit his is custom granting extra strength.
As KInG said, he should be easy enough to convert, just give the skyboard a wild angle.
Of course, modeling his elegant cape might be a bit of a PITA, but not impossible. Right KInG?