Just call the new sled SRX and make it bad@$$. I don't think the 2 stoke will be back. So either supercharge the new 4 cylinder 4 stoke or turbo. Lighten up the weight and let her eat.
Maybe the future of Yamaha is the Vintage Sleds , Just keep the power house 2 strokes going .. you really can never go wrong with them. Still love the Vmax 540, Vmax4 800 and my 2000 SRX.