Blyth's core service fleet are aged between 2009 and 2012. Yes, the oldest Geminis are approaching 10 years old, but they're still modern for their age. If it ain't broke, don't fix it.
As for the 1 and 2, there does need to be investment in larger buses for both routes as it is a bit of a squeeze at peak times. Brand new buses aren't the way forward.
The 685 is another route which needs new buses, which Stagecoach are delivering on their end, the OmniCitys are really tired but are powerful, so are probably better placed at Darlington or Ashington on express work.
One way that could see more investment would be the abolishment of free travel for ENCTS pass holders, and instead charge a flat fare. This would bring in revenue to invest in more buses, more often.
RE: Arriva North East: Order Predictions