I believe the 2nd print had a "skybound" logo on the bottom.
Yep. I think that's it.
I just bought the first two volumes of omnibus editions.
Will be the third one reprinted in the near future?
I'm sure it will be. Now that #1 and #2 are reprinted, there's no reason not to keep all of them in print.... especially with the popularity nowadays. Keeping them in print will keep the money flowing. I doubt it will be that long..... unless he gets sidetracked with other ways to bring in more bags of money.