The current CityCom System is nice. I remember dropping my chin as I saw it the first time years ago. But it is out of date and lacks some flexibility. There are many sections like the News, Stockx or Forums which are unused others like the Missions need some rework. I can imagine that the logic of it is hardcoded and change of any button or text field would require a Client Patch which makes implementing new features and changes difficult.
I think reimplementing the CityCom as a browser would solve those problems. There are ready to use browser engines like webkit. Changes to the UI could be implemented at server side adding features would be much easier. The look and feed of Neocron could be preserved using style sheets. Maybe even this forum could replace the ingame forum