Almost certainly right Gavin. In fact, this sounds like an April Fools joke four and a half months late.
I'm not sure of the exact rights position but C4 would never tolerate a situation where Endemol were making another version of DOND in direct competition with the one it screens.
I can imagine STV buying the Uk rights to another international format these days - just as they did with Fun House or Wheel of Fortune - but there are no distinct Scottish rights for DOND.
About the only conceivable thing would be for MG Alba to commission Endemol to make a Gaelic version! But even this sounds unlikely.