Well, technically speaking, Denim Air has been acquired by the same holding company that already owns VLM (and,
afaik, quite a few other companies). Not sure that this means a link-up between both.
If so, it would mean a combined fleet of 38 (!) Fokker 50 and 15 Dash 8, according to this list:
http://www.denimair.nl/callsigns.htm
(VLM has 15 Fokker at the moment)