I would say Air Wales/Air Southwest and Scot/Eastern have a different business model.
Air Wales and Air Southwest mix business and leisure traffic with some cheap fares and leisure orientated routes alongside high fare businees routes. Scot and Eastern are focused entirely on high fare business orientated routes. Like I said earlier, if Eastern do take over Air Wales's routes, I would expect the leisure orientated routes to be axed
Therefore I think any super merger of WOW/6G/T3 and CB wouldn't work. There would be a highly mixed fleet operating different businees models. However a combination of Eastern Airways and Scot Airways could be interesting