So apparently the three day search around the reservoir, has allegedly, resulted in some items of interest being found, as reported in the mirror link below. These items will now take months for forensics to analyse. I have to say that my own view is that these will all prove negative, in the search for Madeleine.
The result being negative is exactly what happened in the Ben Needham case. Where items of alleged interest were sent for the same analysis, and yet months later, were shown to be unrelated to Ben’s case.
https://www.mirror.co.uk/news/world-news/madeleine-mccanns-parents-face-agonising-30081582