During E3 this week, Turbine announced that the Lord of the Rings Online expansion, Riders of Rohan, will officially launch on September 5th. The expansion will contain many brand new features to LOTRO including mounted combat as well as a level cap increase to 85.

Introducing Mounted Combat -- Ride into Combat atop your loyal War-steed as you defend the people of Rohan from the forces of Isengard and Mordor. Customize your War-steed’s armor and level its skills over time to aid you in mounted defense of King Théoden’s lands. Mount your steed and gather your fellows to fight against Warbands, contingents of roving wargs and orcs that have been scouted all over the Plains of Rohan! It falls to you to head off and defeat this new threat before they over take the land.

The team has also produced two new videos, one a cinematic look at Riders of Rohand, the other a look at the new features RoR will include.