Lord of the Rings Online will be having a Welcome Back ‘weekend’ from October 15th through October 21st. During this time period previous players of LotRO can come back to their accounts and play for free, and everyone who plays will receive a 25% XP buff for the duration of the event.
Looks like it is a drive towards the release of the next expansion (Siege of Mirkwood) as the forum post regarding this points out that any returning customers who re-up with a multi-month subscription plan will receive Siege of Mirkwood for free.
Posted by Sapience:
During The Lord of the Rings Online™ Welcome Back Week from October 15th through October 21st, you can play your old characters for free and get a +25% XP Bonus. Plus, if you come back now and renew your subscription to LOTRO with any 3-, 6-, or 12-month $9.99/month* subscription plan by October 31st, we’ll give you The Lord of the Rings Online™: Siege of Mirkwood™ digital expansion for free! (Click here) for full details!
(Originally posted in my LotRO blog: Sneaky Hobbits)