I really don't know how I would describe this because it just popped into my head but 'ere it goes. XD
Implementing the garden feature "Looking around the Gardens you see...(Insert People)" into the fighting zones, I think, would be a great idea. when you're fighting someone and they log off for whatever which reason and you sit there clicking the refresh button and nothing happens because they aren't there becomes aggravating and time consuming. I think it would save a lot of time for a player. It could say at the top of the zone something like "As you spar, you see other shinobi gathering to watch. At a quick glimpse, you see...(Insert People)" And this can tell you who is hanging out in the zones, just for fun. xD
(Edit) Also, if you challenge someone to a zone fight, you can go see who is in a zone so you can choose an empty one.
Thanks.
Sorry if the details are lacking.