There are 3 cardboard boxes with more Easter eggs. We get a few references to Marvel organisations such as A.I.M., who you may remember from Iron Man 3 as an R&D agency run by Aldrich Killian, Hammer, one of Stark Industries primary rivals which made an appearance in Iron Man 2, bankrolling Whiplash and finally a box with the Stark Industries logo on it.
Bag 4 finishes the fuselage and all that is left are the engines and tail section.  You'll notice that this aircraft has a bathroom on board as well as some storage for a non-existent flight attendant.  I think this is the first time that LEGO has put some additional details into aircraft besides just seats.  Also there is only one pilot for a 2 seat cockpit in the set.  
@DrDave : My thoughts were not that the hangar should be big enough to hold *all* aircraft simultaneously - which would, indeed, make it huge! - but that it should at least be big enough to hold any one of them. Just a few studs wider should cover the wingspan of either jet (judging from the photos). Add a few centimetres to the height - by whatever construction means - and that'll accommodate the oversized tail on the Viggen-styled plane. If/when I pick up this set, that's the mods I'll be making to it.
Over the years, Lego has licensed themes from numerous cartoon and film franchises and even some from video games. These include Batman, Indiana Jones, Pirates of the Caribbean, Harry Potter, Star Wars, and Minecraft. Although some of the licensed themes, Lego Star Wars and Lego Indiana Jones, had highly successful sales, Lego has expressed a desire to rely more upon their own characters and classic themes, and less upon licensed themes related to movie releases.[48]

I'm not sure what to make of the set yet. I like the planes (although that biplane really doesn't need the bubble canopy). The idea of adding a hangar is interesting and I don't mind that it's a bit open. But the fact that it'll only house one of the three planes is annoying. Having said that, I'm not sure what you could do about it. Tripling the hangar would make it big and boring and push the price up. Could they have done two planes and a double hangar?

I like the nod to the classic LEGO Ideas Book with the 'Follow Me' sticker, but overall I think the F-18 type jet is redundant, making the whole thing over-priced. Had it been presented in a different colour scheme from the Viggen, and maybe a bit of a sleeker or more agile design in itself, it might have been a worthwhile inclusion. But as it is, it just superficially looks like two fairly similar aircraft, and thus quite a bit less value for money as a set.
LIC - LEGO Instruction Creator, developed by Jeremy Czajkowski, is a cross-platform, Python, OpenGL & Qt powered desktop application for creating and editing LEGO instruction books. LIC imports 3D models, organizes them into submodels, pages & steps, and exports the end result as images or PDF. A rich, WYSIWYG UI editor, which provides a fully interactive preview window along side a drag & drop-enabled navigation tree, to help organize and layout your book. Portions of LIC are based on work of Remi Gagne. LIC will be part of the AIOI - LDraw All-In-One-Installer.
We are a collective bunch of geeks who love to share our passion with the rest of the world. Just like the Beholder we have adopted as our mascot, we have both depth and width of geeky topics we cover. By visiting this page, you declare yourself one of us! If you have grown up with a steady diet of all things related to video games, Star Wars, Star Trek, sci-fi, gadgets, toys, Transformers one way or another, this will be your second home.

The cockpit, including the stickers on the sides and the canopy, is identical to that of the first jet, as is the front of the aircraft. As previously noted, however, the wing configuration is different, as is the tail design which features twin tail fins and a pair of fuselage-mounted tailplanes. The red 4 x 1 x 3 tail fins, which have appeared in a total of seven sets including this one, are angled outwards similar to the arrangement on an F/A-18 Hornet. Overall, it’s another sleek design but once again the smooth lines are somewhat spoiled by the prominent canopy.
The remainder of the build is the control tower and terminal building. First there is a metal detector screener leading to the waiting/secure area of the airport, which seems taller than it needs to be for the minifigures. I think the same effect could have been made with half the height, except that would not allow for an impressive height for the overall tower. However it does seem to be similar to many modern airports with the high ceilings. This area also seems to be someplace to check luggage as evidenced by the rather nifty conveyor belt that comes in a full part. The moving parts of the set include a revolving door (a very tall one, for the first floor) that leads from the secure area of the airport out to the tarmac, and of course the conveyor belt.