I think that what we need now is not a new turbine with a new class of thrust, but we need that the actual turbines will be worked out, to get less kerosene burning, even more reliability and why not, less noise...
i'm dreaming to have a "scale" turbo fan!!![&:]
for sure development of new turboprop assembly, i think in the small class, using for example a MW44 as core engine will be great...
not always to have to build "big models"
alessio