An improvement of the arrivals area has been identified as an issue by the airport. In its Sustainable Development Plan it states that this area has an annual capacity of around 5 million and "Works to provide additional capacity will be required in the short term"
What their idea of "short term" remains to be seen!
As has already been pointed out, any expenditure here will not generate additional income, it will only serve to improve, in airport parlance, the "incoming passenger experience" and hopefully therefore keep the airlines happy?