The selected designers and architects, namely Sonja Baümel, Maurizio Montalti and Berend Venema & Marcello Fantuz, were given an additional few months to further develop their plans for Valkenburg. They were guided by Maurer United Architects, Herman Verkerk, Ernst van der Hoeven, Irene Fortuyn and Nils van Beek.
The final plans and visions were presented during a symposium in Valkenburg on November 30, 2011.