First of all, the lifetime subscription has returned to the 200 dollar price tag once more, making it very lucrative to grab a lifetime subscription if you don't have one already. Everyone, hooray for the nicely priced lifetime subscription.
Also, any current or former player who changes their subscription over to a multi-month package (three, six, or 12 months) will get the Siege of Mirkwood for absolutely free. Yes, that's right, you heard us, free. The multi-month package deal, however, does not include the lifetime subscription. Sorry.