Product page: http://store.turbine.com/store/turbine/en_US/custom/pbpage.lotro-mordor
Mordor FAQ: https://lotro.com/en/u21-FAQ
Summary: 3 Editions, at 40$, 80$, and 130$
Standard: Expansion only
Collector's: Expansion, HE, Character slot, Alliance cosmetics/Mount, Title
Ultimate: Expansion, HE, Character slot, Alliance cosmetics/Mount, Mordor Cosmetics/Mount, 2 Titles, Account Housing teleport (?), XP accel, 3 relics, 2 Ess. rec scrolls, 10 shared storage, 1 month VIP.
Not available until Winter, and Update 22: 2495 LPs for expansion, 1k points for the HE
Launch date is July 31st, 2017 - no-later than Aug 31st, 2017