I'd like to have just 1 book with the stats for every single model that has been added to the range, like amdur, arathorn, gildor etc, as I'm sick of trawling through WD's and resource books looking for the stats of characters who have models, but seem to have no rules at all for them or are hidden so deep in books that you'll never find them.
and more plastics would never go amiss, we need a box for high elves similar to the galadhrim box set (8 sword, 8 spear, 8 bow, 8 separate shields) and a Numenor box set (8 sword, 8 spear, 8 bow, 16 separate shields), a proper numbered easterling box set and Haradrhim box set as well (both breaking the 33% bow rule meaning a part of your box set is useless and wasted money)
some plastic elite units would be nice as well, a box of 12 citadel guard, khazad guard, iron guard, serpent guard, dunedain/grey company etc etc would save us allot of time and money and clean up the LOTR section of the GW site, which is rather a mess really.
plastic siege engines as well, catapults and trebuchets in metal are nightmares to build, and fall apart too easily.