So basically in my opinion, Riders of Rohan will be lotro 2.0 if they get mounted combat into the game and a new pvp system of some kind (pvmp skirmishes anyone?) (plz?)
But in the mean year that we have to wait, here's what's coming by this Christmas:
Mounts 2.0 Summary: Mounts will get the legwork they need to be more than an item in your inventory. They will be nameable, sometime they might have hitpoints*, but you can now open doors, interract with things and use certain skills and emotes on mounts. Considering how "mount centric" the battles in Lord of the rings were this is expected by the playerbase and future players.
Skirmishes! Summary: I like to call these pve battlegrounds.
If you want to read about skirmishes generally go here.
If you want to read about the story aspect of skirmishes, the the new siege of the prancing pony, go here
If you want to read about their new randomization and scaling aspects, and how they will come in solo, 3 man, 6 man or 12 man flavors, go here
If you want to read about the "soldiers" which is a pet which levels up and has traits but can only be used in skirmishes, go here
Lastly, if you just want the bottom line payout go here to learn about skirmish rewards
Now for my pvmp idea. Skirmishes could easily become excellent places for pvmp. Heck Alterac Valley in World of Warcraft is just a pvp skirmish! So its already been done! You could have both sides trying to accomplish goals and working against each other to succeed. And if they have to guard more than one way in and out, its a lot better. It breaks it up from being the same thing as the Ettenmoors blob versus blob fights. And it start each team with the same number (roughly) of people so that the fight is more fair. (see interesting) I can't see any downside. Monster Players could have their own goblin 'soldiers' too. That could be a lot of fun. And seriously, with Mounts 2.0, the Orc Monster players need warg mounts already. Why not let them ride warg players for a dual bonus? I can't see any reason why not....
*Correction: Mounts will have hitpoints and they will regenerate unless you get totaled and knocked off.