It has been revealed that the events of Age of Ultron will tie in directly to Thor's next solo film Thor 3: Ragnarok. The 3rd sequel of the film is said to hold much importance to the future of the MCU all together. It's going to be the most important movie building up to Infinity War. 

The Age of Ultron which has included Thor showed him seeing visions after manipulated by Scarlet Witch of a somewhat near-to-destruction Asgard. After which, having accomplished of destroying Ultron, went back to Asgard.

Moreover, the Enchantress, an assistant to Loki and one time a lover to Thor, after he picks Lady Sif (In a recent tweet, was Jamie Alexander hinting at a possible return for the Lady Sif in the upcoming Thor movie) over her, she promises an endless disdain for the thunder god and helps Loki in his grudge against his sibling. Why is this relevant? Since the Enchantress (who's name is Amora) can go between domains eagerly through the utilization of her intense enchantment.

Her capacities rival, Loki's, she can do what he is equipped for and then some, she has quelled Thor commonly and presenting her now would give a sensible clarification in the matter of how he comes back to Asgard. In addition to what could be that The Scarlet Witch may have demonstrated to him amid the assault by her and her sibling Pietro (Quicksilver) prompts him to leave the Avengers without clarification as pointed out by Tony Stark in as of the recently released Avengers: Age of Ultron.

Idris Elba has additionally affirmed that both he and Tom Hiddleston will repeat their parts as Loki and Heimdall individually in the Avengers continuation. This up and coming film will doubtlessly start setting up plot focuses and presenting new characters for the continuation to come. 

'Thor 3: Ragnarok' would hit theaters on Nov. 3, 2017 after its release has been delayed from July 28, 2017 following the appearance of Spider-Man in the Marvel cinematic universe.