Section X beefs up the offerings of daily repeatable quests for both the Republic and Imperial factions, including two new heroics with more rewards, more commendations, and more credits than ever before. Daily Commendation vendors will also have plenty of new goods to trade in for, and new campaign armoring mods will allow for even more customization.
Obtaining HK-51, the new player companion joining SWTOR, is touted as a memorable moment for players. Future HK-51 owners must first run epic mission chain that involves a massive derelict Czerka ship deserted for a century.
As an aside, the devs also noted that The Fatality wreck is definitely not located on Hoth. For more details on that tidbit, head on over to the dev blog.