I don't know how the servers beyond com2 are working out, but in my opinion, treasures and VP have had a negative impact on fighting and on team building. This seems counter-intuitive to me still, but also seems to be the way it is going. My suggestion here for the devs is to restart TEST after it ends, run it without treasures or VP, open registration, and see how it goes. I guess I am suggesting a hybrid, a mixture of TK and older Travian versions.
Since it is 5x, let everything run at 5x. But instead of releasing WWs in 22 days, make it 45 days (111 days at 1x is far too slow or far too short, maybe both) to more closely match a full length server from older versions. Have WW plans as the only artifacts, released a short time before WWs and held in treasuries which must be destroyed to steal the plans. Sell gold on the server. Keep the robbers, even, although either without stolen goods or with items similar to those won in adventures.
Let the alliance which first completes a WW be declared the winner. You could include other team oriented features as you see fit, but keep the kingdom/Duke/Governor deal. Let influence be decided strictly by the size of villages owned by kings and dukes.
I think it is well worth a try, and doubt you would have too much work to do to adapt what you already have.