Hinkley is totally another suggestion
Go back to the point: for me, the end of NC was actually a big step back. The good thing would be that in specific situation (arena etc) a server sided NC take place, and we begin to saw some feature like that with restricted to faction NC.
Also, it sound logical to me that someone who kill often people is well know and people know who he is and how recognize him. Even if it wasn't the case, GP>RP, but there is even not this problem here. Now it's just anoying to have to tag evryone, and redo it with all chars. Also, it's pretty imperfect: someone kill you, only one of your char see him red, and only if you manage to tag him, because being tagged is easily avoidable by moving out of range, or just moving, and you can still inform your friends, they simply can't remember all names or russian names.
For TC windows: I really don't know, there were good and bad things about it. it's clearly a problem that a gang can always avoid fight and take back city when noone is here.
What about this: when one of your town is being taken, you can't take another. Also, after a town is taken, it can be attacked during 6 hours.
About the stuff, I would love to see random true PvP stuff (only tier 3) with drugs and, sometimes, a gauss, a HKG11, a vindic, a turbo plasma... ;p