Originally Posted by That Guy
The fact that he mentioned captain america: the winter soldier when he said 7 things may have been referring to the falcon as a possible seventh menmber of the avengers.
I thought he might have been relating the events in CA:TWS to TA2 the way CA:TFA was related to The Avengers
. Specifically, the Tesseract was found by the Red Skull in CA:TFA, then became the focus of Loki's schemes in The Avengers
; so another cosmic MacGuffin might be introduced in TWS that will directly influence TA2.
We already know that Arnim Zola, who worked with the Tesseract, will be in TWS. In the comics, A.I.M. was able to create a Cosmic Cube/Tesseract on Earth. The Cube/Tesseract was a part of the Winter Soldier story in the comics, so it would make sense for his handlers to try and make another in the film. Zola could possibly attempt to recreate the Cube, or he could find some other Asgardian artifact of cosmic significance. The Infinity Gauntlet was glimpsed in Odin's vault; it's not beyond the realm of possibility that Loki removed it while he sat on the usurped throne of Asgard and it ended up on Earth. Loki is perfectly capable of secreting the gauntlet (or the Infinity Gems) away in hopes of retrieving it to use in his schemes.