I don't know if you all had heard this, or even want to know, but there are some story details floating around about Thor: Ragnarok, and they are supported by set pics that were "leaked" today.
I don't have the details exactly, as I wasn't looking to know, but supposedly Loki scrambles Odins mind and sends him to earth to live as a hobo. Odin is supposedly a crazy old hobo on the streets talking whatever nonsense (end of the world?) and that's where Thor (& Loki?) find him.
I don't know how this related to Thor holding Dr. Strange's address on a sticky note, but it could have something to do with restoring the All Father Odin.
Other than that, I believe the rest of the movie is Planet Hulk (+Thor) w/ an 80's vibe and soundtrack.