I'd love it if they added scaleable war-bands to the lower level areas,
like Angmarim in evendim that leave an angmarim city and match toward Ost Galadh.
or Brigands who sneak in packs around the shire looking for hobbitses to thug.
each giving scaleable Marks or boxes as rewards.
I know in other MMOs, if a high level helps someone in those encounters, their toon is scaled down to say, lvl 10 or something in order to contribute a little more evenly against the public encounter.
I don't know if lotro's gear system would do this effectively, but it would make the game a lot more interesting, and enable high levels to help new players without making it easy mode for them.
LvL 100s: Beorning, Burglar, Captain, Champ, Guardian, Hunter, Lore-Master, Minstrel, Rune-Keeper
LvL 85: Warden, Minstrel
All my forum posts are my opinions and may not even be that. Also On Twitter: @leixicon