"Ryanair may only be scheduling one flight a day right now but don't be surprised if the frequency is increased."
They have been adding a lot of new routes at 2-3 times per week, so going daily into a crowded market (Air Europa also new here as of end April) shows they mean business. But FR are never likely to want to match U2 on frequency - take a look at STN-PIK, where they used to operate upto 9 rotations, and they now just offer 3. This isn't all down to switching between the '200s & '800s. Now compare that to U2's offering from LGW, LTN or STN to GLA. High frequency might attract some business pax from legacy airlines, but I don't think those are the people FR are targetting, and not at those times. So for FR, high frequency just means lower yields from the leisure market, whereas pinching a few of U2's passengers means easy pickings.