Yes, even 2 years ago the TT RS Plus had 360HP...
But it is as always, from horsepower side Porsche is always down to the competitors.

I see hard times for the 981 (Boxster and even more the Cayman).
Now Porsche has very similar engines to most of the competitior (4 cylinder Turbo).
future TT RS and current RS3 -> 5 cylinders
BMW M235i 6 cylinders ans much cheaper
The coming M2 6 cylinders and 370HP for a price you hardly get a base Cayman but with performance figures near to the GT4. Ok clearly it will lack the feeling the GT4 provides, but many customes will not see that. But it will be a M car so better that the normal 2 or 4 series. For most of the people enough.