Chrispler:
Buffet seem to underestimate the complex application process to develop the aiport (ILS, runway extension)- might impact their plan to operate there by 2010 latest
In the article you've posted it says:
Für eine Bahnverlängerung wäre ein Planfeststellungsverfahren notwendig, das nach Lehmanns vorsichtiger Schätzung mindestens bis 2015 dauern würde. Netjets habe jedoch signalisiert, bis dahin mit den Sichtflugbedingungen auszukommen.
It basically means that the managing director of the airport (Mr. Lehmann) carefully estimates that the planning process for a runway extension would last at least until 2015.
NetJets supposedly indicated that they would get by with visual flight rules until then.