The Revo is still Harley's research engine.It's also the engine that keeps the %'s down so they can pass epa requirements.Without the Revo,there would have to be an engine that would keep them in the loop w the epa.Right now,they have coals in the fire over in India and cannot afford a new engine.The Brazil plant is involved with the India for making sub assembly's that will keep the tariffs low.They did all the consolidation in the past couple of years to concentrate on India,not make new engines.I say as soon as Harley moves from this continent over to India for there main assembly plant,then we will see some more innovation.Until then,the Revo will be around for a few more years than you think.