What you could do is talk to @hongkongatron and set it up as a community event and have staff on to help enforce rules like that for the event and do it once a week as a pop jb event kind of thing, I'd be willing to help staff it as well.
I'm sure I'm not the only person who is tired of playing the same 4 maps, Can we please add a longer wait period between maps so we don't get the same 4 maps played