There's no big opportunity. No one even makes western commercial turboprops anymore other than the ATR in small numbers. Loganair were realistic and rolled over 40 year old Saabs for 20 year old ATRs, new builds would have killed them.
The days of people flying Air UK F27s up the East Coast full of businessmen or oil men in a pre-Zoom world. Scotland-MAN/BHX served to feed hubs for BA, LC (now LM) and II (Business Air, who fed Lufthansa). Almost all of that feed now goes direct, and there's no business case for point to point GLA-MAN/LBA/CWL/LPL or EDI-NWI or HUY. No more Fokkers, Sheds or Budgies, it's the ATR or a loco jet, because the prices on the old school props are markedly higher than a market that flies to Spain for less will bear. This is mainly due to the economies of scale of a large jet, not the greed of smaller operators.
Meetings are mainly online, trains are much better and even the road network is better in parts! Time to move on, unless some new technology changes the game.