Marvel Avengers Alliance has been around for awhile, having been released as a tie-in social media game for Marvel's The Avengers. The game has been set in its own universe, though it has specifically taken inspiration from the 616 (regular Marvel comics), and to a lesser extent, the MCU (movie universe). The movie connections have been fewer and far between, such as Sam Jackson Nick Fury and Clark Gregg Agent Coulson, but they have been releasing movie based 'Special Operations' to connect players with what's happening on the big screen, and to encourage them to go out and buy a ticket. Generally these SO's will incorporate MCU villains and heroes, or at least nods to the movies.
One example: At the time Iron Man 3 came out, the Special Operations villains were the 616 versions of Mandarin and Savin. New costumes were released for Iron Man and War Machine which directly reflected their 'Iron Patriot' and 'MK 42' movie suits. So it's a bit of intertwining of both universes. The new hero released with that Spec Ops was Rescue, or more specifically, Pepper Potts who's donning an Iron Man-esque suit of armor. This was undoubtedly a nod to a certain scene in that movie.
So, we've established that the game makers are getting specific plot details about the movies beforehand, as that event in the game dealt with Extremis, Savin's role, Rescue in the Armor, so on and so forth. Also! They're allowed to release previously unreleased information regarding Marvel events, as Thanos' son, Thane, was added to the game over a month ago in full regalia... while he's still in the process of being introduced for the first time in the comics. Oh! And also, Iron Man's MK 42 has the ability to call down an army of Iron Man suits to assist him in an attack, which is an obviously spoiler from the finale of the film. One thing they haven't done is directly contradict developments in the MCU.
Now, there is a fun little thing they do in this game with previous villains. If they have switched sides at some point and become heroes, the developers will release them in special lockboxes, essentially making them heroes you can use. Most lockbox villains were originally evil but now are heroes in the comics such as Magneto, Elektra, Omega Sentinel, and so on. We'll get back to that in a minute. For now, here's the current picture of Loki in the game:
Obviously, this his villainous attire. This specific iteration of the character has never been in a story arc where it would make sense to be included as a permanent hero. Young Loki is another matter, but we won't get into that.
On this fine Saturday afternoon (Oct. 12), it was revealed at New York Comic Con that Special Operations 14 will deal with movie Malekith and movie Kurse, while allowing you to unlock a new hero, movie Heimdall! What's more, none other than Loki Laufeyson will be introduced as the newest Lockbox hero! ...Hold on a second. Loki is no hero. Even if he assisted for a short duration to help with Malekith, it doesn't justify adding him into the game to team up with the likes of Spider-Man and Cyclops... This means that we will be using Loki to defeat the forces of Kurse and Malekith in the Spec Ops, and he will otherwise be fully playable until this game goes offline. So what's the big deal, you're thinking? Well, the thing is.. they're not releasing supervillain Loki in Lockboxes. THIS is
Superhero Loki:
Pretty wild, eh? It would not make much sense to allow Loki to be a fulltime hero on your team if he betrays Thor at some point during the movie. Secondly, Hiddleston has admitted he had an idea to put in an additional Loki arc for the movie that they did indeed ended up adding, as seen here: http://www.comicbookmovie.com/fansites/movienewsandreviews/news/?a=86724
So here is some not-so concrete evidence that Asgard may be getting another champion by movie's end.