Defending towns in the wilderness

In the latest blog it is said there are towns that are fortified and you can attack or defend them. So i was thinking it would be fun if say there were 5 towns that were defended by NPCs. And randomly through out the day chest events could happen. A warning could come up saying something like "Chests are spawning at North Town" and it say the time remaining until they spawn. Maybe something like 15 minutes and it will remind you every 5 minutes. And these castles/towns wont be accessible  until these events happen. Maybe it has a mote and a draw bridge. The drawbridge only goes down when the timer reaches 0 for the chests to spawn and the NPCs will defend the castle until they die leaving the castle for the players/clans the took it. 
Once the NPCs are dead and the players get in they can try to hold the castle from other players while they collect these chests.
The chests could have a higher troop drop % and could be uncommon and rares to give players more of a reason to try and take the castle. It would be a fun activity for clans to do.
And of course while the timer is ticking down for the chests to spawn clans will fight each other before the siege even starts to ensure they get into the castle first. There would be battles before the battle.

Players that die in the wilderness should re spawn in the arena again making the walk back long giving death a harsher penalty.

The castle could be lined with lots of hard bot archers and knights waiting for you when you breach the wall. Or maybe they'll send waves out of the castle to deter you from even trying. Could be fun!