The BioniX 13 will be on show to the world at Europe’s biggest microlight show, Blois, in September. I assume that interested pilots will be able to test fly the wing by asking at the Aircreation stand as is normal.
In the meantime Aircreation have released some information at http://aircreation.fr/en/catalog/wings/bionix_13_387. Please note that the “Characteristics document” is not the final draft and the numbers in that document are likely to change as the test pilots and engineers tweak the wing.
If I get the chance to attend the Blois meeting, then I will fly the wing and report back on findings in comparison to the BioniX 15, but I would think that any test flight is going to be quite short and may not give me a chance to get the feel of it. I found that with the BioniX 15 any pilot will need at least 10 hours in the air to fully appreciate everything that the wing can do.