I have some suggestions to share with you which we really need :
1)
In my opinion, there should be more historical battle for middle earth 3 vs 3 and 4 vs 4 style maps are needed and the good factions will start with big castles, like how is at 2 vs 2, 1 vs 1.
2)
There should be maps like this one too : " Every player will start on an unique castle/fortress/outpost like big minas morgul, minas tirith, helms deep, dol guldur, cirith ungol, erebor on the same map ( it is possible ;because there are some maps like that but there are not unique in many ways that edain team is making style. That's why, we need edain team members' touches^^ ).
3)
At 3 vs 3 and 4 vs 4 there should be enough settlements and big camps. Because faction like mordor, it is mostly rely on settlement buildings to be more efficient in the game/battles.
4)
And at the castle maps, the good factions' castle walls and camp walls should be much more durable and more healts are needed ( it is very easy to breach their walls and destroy their buildings ). In addition for all faction's buildings, towers should be more durable against attacks too. Otherwise, in current 4.0 demo they are really weak / easy to destroy
5)
We need more 3 vs 3 and 4 vs 4 castle style maps too. I believe that most of edain mod fans and players love to siege.
Note:
Let me know what you think about my ideas and suggestions above, thank you.