Musical chairs from what I can see. Glasgow is being reduced down to 3 weekly from 7 weekly (I think?) last summer, while Bristol is being reduced from 7 weekly last summer (?) to 6 weekly. Therefore the 5 weekly service to Edinburgh seems to be at the expense of 4 rotations per week to Glasgow and one to Bristol.
In further musical chairs, the Cork based aircraft that currently operates Cork-Glasgow-Shannon-Glasgow-Cork will now operate Cork-Bristol-Shannon-Bristol-Cork with Shannon to Glasgow handled by a Shannon based aircraft.