I would say MM will be the final round and the article indicates, the MM case will follow later. But at least we learned over the last days, that so many articles from the last days, weeks or months didn't turn out as trustworthy.
But F.A.Z is a big serious german newspaper. So we'll see...
We also know from CB's letters that he and FF already had access to the files about the abuse of the 10 year old German girl on the beach just a few weeks before MM disappeared. At least they are moving forward! Which can only be a good thing!