With Rolls-Royce producing the engine, and Dowty the eight blade prop, making it the most powerful turbo-prop in the world, two of these engines could power a 737, 320 size craft.
Imagine a new generation of 180 pax sized plane, built using the latest light weight products, fitted out internally in say 32" pitch with seat back screens, and power jacks, competing with the "jets" on mainline routes, probably adding about 5 mins to a SYD/BNE sector(turbo props don't require long take-offs, or landings). Savings thru fuel, etc.,could take 40% off costs, and best of all, they would not be worried by curfews.
Will it happen ? who knows................
Cheers Dee