I would like to see the UK serves and also the US2 server implement a SFW version of the photo viewer and dates like NU1 has.
For people that have never played on NU1, I will explain briefly. There is extra content you can do in the form of tasks for date girls around the various areas. These reward you with items, skill points and naughty manga pics that you collect for your viewer. Most missions also have developer to collect so you can cash them in for other random pics.
Big project I guess it would be to gather enough suggestive but safe art, but it would be cool, I think. The added character building stuff would be welcome also. I've done everything for the dates that I can find on NU1 up through the one in Port. I do hope there are others still to come. Also, some players might appreciate if some of the dates were guys. Might be nice to have an interaction with a guy other than it being some chump that wants to beat you up.