If it's not up by Wendnesday night then I don't think we'll be seeing it until January. Who the heck wants to be in an office (even HTC's office) on Christmass Eve? Other players have mentioned in the past that HiTech doesn't do his Santa run on Christmass Eve from the office but from his house (don't know if that's true, but if his account has Admin privs then I'd imagine it being quite doable). HTC has cranked out a lot of progress/updates already this year, really pushing for the major stuff to be out before the year's end, and the WWI arena will be done when it's done.
Now, since they're making sure it's gonna be perfect for it's release, I want to know how many players/gunners/kegs the Zeplins are gonna hold? I have dreams of a death-star-plin-party, clearing the skies and raining down empty beer containers with my squadies everywhere we go.