I was thinking that virtual worlds don't have much of a concept of time. Its just sunny all the time in every game. I think it would be cool for Kingdom Island to have a night time after a certain point, this would make it a lot more realistic and it would change the atmosphere.
Also no other virtual world has done this but would it be possible to add weathering? Such as rain, snow, storms etc. This has never been done so the idea is waiting to be used! Kingdom Island could be the first virtual world to have weather! The weathering could occur at random times for all the players to make it unpredictable and therefore more exciting and something to look forward to!!
Heres an example by penguitt of night time in Kingdom Island...