I mentioned above that I would like to see more set-up with Thanos and the Infinity Gauntlet for Easter Eggs in Thor 2.
It looks like we will in some way get some set-up for Thanos and GOTG in a post credits scene because in another thread, a user posted this link of a SPECULATED, but will probably end up being true about the post credit scene of Thor 2 will be about Benicio Del Toro's The Collector getting this sphere item that Kurse has.
Just on a side note: IN MY OWN PERSONAL OPINION, unless anyone else thinks this also, I think Marvel is keeping something under wraps about Benicio Del Toro. I don't think he is playing The Collector, I think he is indeed going to play Thanos, I just think Marvel is using The Collector as a cover up until they announce he is playing Thanos.
Because think about, you wouldn't cast a talent like Benicio Del Toro and just cast him as this Collector character. I think he is Thanos, plus in my opinion he sort of has that face for Thanos and the voice.