Not wishing to be funny, but why should the airport be interested in building a brand new check-in hall, when the current uber-lords are Ryanair? Low-cost airlines are encouraging pax to bring fewer items of luggage, check-in online and bypass expensive terminals. It's why there's been so much resistance to new terminals in the past being built at LTN and STN, low-cost carriers simply won't pay for it. Obviously, for an airport the size of EMA, it has meant a lot of unsightly chopping and changing to the terminal, plus lots of cheap add-ons. Also now with larger a/c, the situation with boarding/disembarking from the front stands is really adding to turnaround times. Ideally, we'd have a new terminal, great ramp layout etc. but it's not going to happen if airlines aren't willing to invest, which as a predominantly LCC and charter airport, the users of EMA won't.
I can't quite get excited about diverts, hopefully my plane will be parked somewhere reachable tomorrow and I'll get on it!