To sum it up, exotics will have to be given to Xur in order to be upgraded to on level with new DLC stuff. This will require 7k glimmer, an exotic shard, and will reset all level progression. Exotics will take less long to upgrade (supposedly) (can be done regardless of purchasing DLC. There's basic stuff about story missions and the strike, including the fact that Bungie has added a few mechanics in a couple of them to make them slightly more interesting. Heroics and Nightfalls will be upgraded to level 30. Raid gear will have to be upgraded with radiant shards and energies which will drop from the raid itself or from dismantling raid stuff. Eris will be able to exchange radiant energies for shards and vice-versa. New legendary gear from the factions will require commendations, which are earned from leveling said faction up (can be done regardless of purchasing DLC). There are some new PvP maps. Bungie devs complain about stuff as well.

It's 3 pages long, so it won't fit in his post