Just FYI, as of today, the final trailer has officially been registered. Right around 2:25 in length.
Yesterday, I happened to talk to the same friend who's seen the past two trailers in advance, and this one is apparently way more specific about the plot (which is to be expected). Said there are a ton of space/ship shots, and even some of the crew on the planet from the second half of the movie. My friend didn't think this new trailer is as good as the second (not nearly as emotional), but still really cool.
My guess is it debuts with either Guardians of the Galaxy in two weeks, or Teenage Mutant Ninja Turtles in three weeks (since Turtles is a Paramount movie as well). I guess it could debut this coming week, since it was originally scheduled to debut with Jupiter Rising on Friday, before WB moved that to February. But GotG/Turtles feel like more appropriate movies for it to be attached to over Hercules. If I had to bet, I'd say it debuts with GotG, and will likely be online that Saturday, August 2nd.
Part of me can't wait, but another part of me doesn't even want to watch it. I've already seen everything I need to see. That second trailer was absolutely perfect. No way I'll be able to resist, though...