It would be nice if WZIB had a tier system.
Low tier for newer players.
High tier for older/powerful players. Make High tier have bigger rewards to encourage them to leave the Low tier alone.
That would be nice but given that in the games I join from time to time, the maximum number of competitors is not always hit, having a tier system would result in some tiers not being able to fill the battles with enough players to even start.
Perhaps a tier system would draw more players into battles, but with the rate of participation that I observe at times, a tier system would totally break the battles in their current form.