Here are few ideas:
Taxation:
Taxation is a "little" hard to put in use, but every player should be obligated to pay a tribute to the city they live in (ie. help upkeeping the city). What makes my idea a little different, is that it is NOT mandatory. Every player has his/her own responsibility to pay taxes within time (time could be shown in scores?). If not paid in time, player suffers reputation loss and also needs pay extra penalty fee. If player does not pay the taxes and the penalties in a long time, a NPC "tax evader" party starts looking for him. How it continues when the tax collectors catch the player, is another story...
Fees:
More fees should be added, also the transaction costs should be higher. Mere 150 silver transaction cost is extremely low, little too i am afraid. If the transfer fee rises more rabidly, to say around 1-2k (which is still quite tolerable), it would be significant sum of money that can be withdrawn from players every day. Here is a little chart of fees (first transferred sum, then the cost).
1 silver - 10k = 150 silver
10k - 50k = 800 silver
50k - 100k = 1500 silver
100k - 300k = 2000 silver
300k - 600k = 2500 silver
600k - 1,5M = 4000 silver
1,5M -> = 5000 silver
Ereport. This is something i must disagree in fees. It's good for lowbies to have that basic 5k cost, but then it rabidly rises to 20k and so-on, which doesn't really encourage players to use it.
It would be better if the ereport cost rises in smaller steps, like 5k for every 10M. Much more reasonable and also encourages players to use it (sometimes, but not too often

Resizing armours is quite good, no need to change the sums. But there could be a additional fee when resizing equipment which has over +3 in one stat (ie. like +3 con pants etc.)
Passage fee. This is something i have wanted for sometime now, but nobody really has liked the idea (not really a surprise). Anyway, a small fee should be paid when entering city perimeters if player has too low reputation. Nothing big here either, but should be dependent on the total exp worth of the player.
Automatic penalty fees for breaking laws. This is something i would keenly want to see. First pkill (for example) would only result a penalty ticket, which has to be paid within time (see taxation). If player continues to pkill and trash enviroment

I'll keep posting new ideas as i get them.