I imagine network carriers which would provide onward connectivity will not consider MME for new/increased service until they see perhaps 500,000 pax per year through the airport. This would show both substantial operational capacity and a desire for air travel from local residents (who are also the employees of exporters)
If MME wants flights that are *codeshared* with something in the Lufthansa, Norwegian or SAS groups, then maybe 10 short-haul leisure or migrant labour focussed routes need to come first.