I thought it was Iron Man 3 in 2013 and Thor 2 in 2014? I'd love both the same year but not what I'd heard.
Asgard was a beautiful world and there are plenty of things to explore during the movie. Dealing with the loss of the Bifrost, Odin and Thor's time together post Thor 1, Loki's trial, Jane making her way to them and seeing more of their day to day life through her eyes etc
And as another article aluded to, Thor making his way to some of the other realms trying to assure peace and an Asgardian presence with other less friendly realms reacting to the Asgard's weakness, and Earth's sudden appearance on the galatic warfield.