Since there doesn't seem to be much other news on this case at the moment, here's a geeky tidbit re MM and Julia Faustyna. Websleuths leads me to the strangest types of research.
What stood out to me the most re MM and Julia Faustyna/Wendell/Wandelt was the difference in the appearance of their lips. MM's lips looked very thin whereas Julia F's lips were clearly fuller (the age in Julia F's childhood photo was not given but in it, Julia F. was clearly older than the photos shown of MM).
I'm focusing on Julia F's early photo since it's possible that she had lip filler injections as an adult. (I don't have any info. on that. I'm just considering it as a possibility since it's been stated that Julia F. is a model/influencer or similar, and lip injections are very popular with women these days).
Here's what I found. The quotes below are from the
Scientific World Journal Age Changes of Jaws and Soft Tissue Profile
6.3.2 Lip Thickness During Growth and Maturity
""Lip thickness increase for males from ages 1 to 18 yrs was around 7 mm while for females it was around 6 mm."
9. Conclusion
Child face is not a miniature form of adult face. As growth process takes place, the changes in the hard and soft tissues of the face bring about a significant change in structure and profile of the face.
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So I don't think the different appearances of the lips between the two girls necessarily rules out them being the same person. Then again, many people resemble each other in various ways as these two somewhat do; it's not much to go on. I think they were found to be 59% likely NOT the same person, but hopefully we'll soon know for sure.
(Madeleine McCann is on the left. Julia Faustyna is on the right)