Loganair are increasing Edinburgh and Glasgow to 30 weekly next summer - 5x daily on weekdays. Extra early morning out, early evening back service to Edinburgh and mid evening out, late evening back service to Glasgow. 1 E145 will overnight at Southampton on weekdays for this.
Pre-empting any Flybe increases I imagine. It also should not be forgotten that the runway extension should help Loganair out in more extreme conditions, as there have been a few cases of them having to offload bags and people on some flights this summer.