There seems little point in the airport having talks with the airline if the decision has already been made. We did have all these rumours last year and then came the announcement of an extra days operation. Another explanation could be they want to change Handling Agent.
In the absence of figures from the CAA for May onwards it is hard to judge how the route is doing but figures appear to be up and Business and premium appear to be having a higher take-up this year which would bump up yield.