Tried this with a group of friends today and it was a lot of fun. The fading is a great touch. Main thing we wanted was a minimap, or some way for new arrivals to find us. Nice work!
I was thinking a minimap would be nice, or maybe a dash option so I could get around a little faster.
For helping people find each other faster, it seems like just having maps with more landmarks might help too!
It would be cool if I could upload my own PNG or something to use as a town backdrop.
It would also be neat if I could click people and find where they are on the map, or maybe just jump to them.