There has been rumours of a Golf R400 so the hierarchy would be protected. If Revo can easily increase the power by software to 350-370 then surely it would be easy for Seat to take it to 350 with a 2 litre engine?
But the question is... would they want to? The new Cupra Formentor is only 245bhp. The NEW Cupra Leon as it will be May only come in around 290-300 again due to WLTP. Only someone with a Crystal Ball will know without waiting till nearer release.