WARNING:THIS POST HAS A TOO MANY CRAZY IDEA : Kahkaha:
I think:
-Eagle
-Huorn
-Balrog
-Spider
-Tom Bombadil
-Dwarven Swords
-Dwarven Scout maybe (Crosbow or bow)
-Wolves
-Barrow-wights
-Dunlending Horseman
-Beornings (bear form)
And add many historical battles Battle of the Five Armies,War of Wrath,Battle of Azanulbizar, Battle of Dale ...
That's enough : Kahkaha:
I know this ideas in the long run and very very very difficult.But every three months, just one idea add this game and than I am so happy