Sounds like the teaser will be 88 seconds. EDIT: List of confirmed theaters that will be showing the teaser: http://www.starwars.com/news/star-wars-the-force-awakens-tease-theater-list
I love how Ironfoot sounds a little different for what we've come to expect from Shore's Middle-earth music but it still very much feels like it belongs in that world.
It looks like it has been confirmed that we will get the teaser in select theaters this week. http://www.ign.com/articles/2014/11/23/report-star-wars-the-force-awakens-trailer-to-debut-in-select-theaters-thanksgiving-weekend
It looks like it has been confirmed that we will get the teaser in select theaters this week. http://www.ign.com/articles/2014/11/23/report-star-wars-the-force-awakens-trailer-to-debut-in-select-theaters-thanksgiving-weekend
Based off of the description, the teaser sounds like a combination of the teaser for Attack of the Clones and The Empire Strikes Back.
https://www.youtube.com/watch?v=omcxaMEGha0#t=15
Lincoln seems to be vastly under-appreciated in my opinion. It easily ranks up there in the top 10 Williams scores for me. Perhaps it is because the movie itself doesn't really showcase the music very well.