https://www.lotro.com/en/friendsforever
Free content now extended through August 31st, and they are going to be issuing a free coupon code redeemable for ALL currently available quest packs added to your account permanently.
You will also soon be able to purchase the expansion quests for Moria, Mirkwood, Isengard, Rohan and Helm’s Deep, plus the instance clusters for Isengard and Rohan, for only 99 LOTRO points each from the in-game store. That is fantastic, as it should allow all F2P accounts to basically play the game free for months/years even after the current free promotion ends. You can easily scoop up 700 LOTRO points to purchase all 7 of the above packs just by normal adventuring/exploring and doing deeds in the early zones.
Note that if I am reading that correctly, you will only get the expansion quests and instances, NOT the expansion add-ons like extra character classes, slots, abilities, etc… For those you would still need to purchase the expansions.