Tipped off by my kinnie Havborn, I have come across an exclusive album of Siege of Mirkwood screenshots at The Madhouse Tavern (a European LotRO fansite). I strongly recommend heading over to the site to peruse the pictures yourself as they reveal a lot of small but relevant tidbits relating to the Mirkwood region and skirmishes!  Some of the most relevant information includes:

• Hunters and Wardens will be able to port/muster to Mirkeaves if they gain acquaintance reputation with the Malladhrim.

• Carn Dum and Urugath class items (e.g. Putrid Slime of Helchgam) is tradeable with Skirmish Marks

• Skirmish marks can also get you a lot of crafting materials including shards (e.g. Mithril Flakes and Ruby Shards). The crafting section also  includes ‘Tomes of Middle Earth’ which may be new crit-items or ingredients for crafting items between Lvls 60–65.

• The in-game menu has been updated and includes a more colourful layout with more options. Our character panels will also be subdivided into tabs based upon our mitigations and damage-output. Minor  but positive changes!

• At least 3 skirmishes will be based in Mirkwood / Dol Guldur, and are designed for those at the new level cap of 65.

Thanks to the Madhouse Tavern’s brief write-up of Krispy’s hands-on with the expansion, it seems that:

• Crafters can make 1st Age legendaries.

• Some class legendary skills which the player-base have deemed useless, are being replcaed or modified.

• You get to use war-machines during some of the quests/skirmishes!