Been away for a long time, what do I need for all available content?
I started with the lifetime sub and according to my account info, I have the following:
Shadows of Angmar™ Pre-order (Best Buy™)
Mines of Moria™ Standard
Shared Storage
2009 Anniversary Program Reward
Shadows of Angmar™ Special
Shadows of Angmar™ Standard
Shadows of Angmar™ Beta 2
Siege of Mirkwood™
Shadows of Angmar™ Open Beta
What do I need to purchase to catch up on having all available content?
It looks like all you need is the Rise of Isengard Expansion. Then the new expansion, Riders of Rohan, when it is released. (Of course you can order it now and get a few perks).