A few friends and I are working on a campaign, it will involve Minas Tirith at the beginning and the end, both with great battles. We'll have a demo out shortly for everyone to test.
I am currently in the process of creating a Minas Tirith map, it is a DotA/Aos style of playing, one hero for you to play. corrisponds correctly to the book as much as it can, all custom spells (Accept for NPC heros) all custom icons for spells and heros, custom models and or skins for most heros. Heros include (good) Aragorn, Gimli, Legolas, Gandalf, Eomer, Imrahil, Eowyn, Beregond. For evil, Witchking, Haradrim Mumakil Commander, Gothmog Lt. of Morgul