There is no harm in living in hope.
In any case the EA888 engine is capable of 300ps without any internal mods, at least that was what I was told some time ago, whether Audi would chose to increase the output at all if this engine ends up in the TT/S is debatable, personally I doubt they would move the output at all but who knows.
Maybe we may see the 2.0TFSi engine being dropped for something else with the potential of 300ps and possibly a sweeter exhaust note.