Renewable Resources and Defensive Emplacements

[:1]Let me start off by saying I am excited that GPG is applying a medieval theme to their epic RTS maps.
The first suggestion I want to make is the creation of food and lumber resources that can slowly renew themselves. Rather than having a limited forest resource on a map, you could have one that would slowly expand on the sides that are not being harvested.
This type of gameplay would encourage sustainable resource extraction. A player would have a decision to make: cut down the forest as fast as possible and extract the resources with the negative consequence of having to relocate your lumber industry when the forest is gone OR cut the forest slower and get way more lumber out of it in the end because the 'regrowth rate' is closer to the 'harvest rate' OR Cut down 90% of the forest really quickly, move your operation to another section of the map for a while and then return to the forest when it has regrown.
In the end, this requires the player to expand while still giving them incentives to hold the areas of the map they already control.
These renewable resources could apply to other things such as fishing, hunting, and even to mining with a couple of modifications.

My other suggestion is the ability to construct ones own 'castle' at places of strategic importance on maps. This is related to the previous suggestion because a player would have incentive to defend the resources that they have managed well. This includes mountable walls (for archers) with gate and turret placement being very important. It would be awesome to have a heated battle where a limited defense force has to hold out against a larger attacking force long enough for reinforcements to arrive- This adds a certain amount of suspense to a game. While the game Stronghold (a game that was so close to being awesome) did have the element of castle creation, it lacked the epic map size that would require strategic unit and reinforcement placement.|||Hitting on your second point, it would be interesting to see no set starting points, and with a 60 second period in the begging of the game in which you can place you castle...|||Grim Tuesday|||Grim Tuesday|||Destroyer224|||Destroyer224