The Grand Alliance Order book coming for pre-orders will have 10 Aelf factions in a 260 page book with 21 Warscrolls in it. Plus an Exalted Deathbringer with Impaling Spear are getting a Warscroll in the this weekend's issue of White Dwarf.
Check out the newest leaked images.
http://forum.spikeybits.com/showthread.php?20765-Age-of-Sigmar-Warhammer-Fantasy-9th-Rumors-Explosion&p=238689&viewfull=1#post238689