An idea regarding keeps...

[Kesxex]

I am personally against upgraded guards. Sure, they make AC raids or small forces impossible but then again they make small forces impossible to take towers as it happens now all the time and is a nice contribution and alternative to roaming.
It allows more casual players (like me) some purpose in RvR by diverting some forces.

The main gripe is still that tanks are fairly useless in tower/keep takes and it is that why I would like to see ladders implemented that open additional climb points.

Treb damage is where it should be - maybe the hitpoints on wall keeps should be adjusted a little bit down on high level keeps.
If the damage is increased all that happens is that one treb can raze a tower too fast. And on a low level keep it is a few shots only to break a wall.