To an extent.It confirms everything in the trailer.And the script overview was released a long time before the trailer.It was on aintitcoolnews.Just google it and find the link from comicbookmovies.It does contain a fair amount of spoilers.One or two big ones.They have nothing about the movies end though.ONly act one and two are discussed.
Things it confirmed.
All of Angels trailer scenes
Cykes return to Alkali lake
Juggernaut as a side villian
Magneto deystroys a bridge.