Not interested.
If you'd played this more than 2 weeks, you might see why the game works as it stands. Don't know why people keep coming in trying to change it to some kind of PvP game, seen it happen before and they never stick around long.
Who is going to supply the rewards for this, because I can bet your bottom dollar it won't be BB? Not in their interest. Even if by some miracle they did, system would need a complete overhaul to distribute the goods alone, let alone provide yet another server draining arena when Flash is already making this creak at the seams.
Already needs an overhaul now, just to accommodate the stuff that got loose from test before it was ready or working.
Seriously, play the game for a while first, instead of trying to change it to something else which is already covered many times over elsewhere.
If you want to see just how bad this can go, take a look at Forge of Empires and the awful update 1.20 that brought in GvG. Destroyed the whole game overnight.