bxl-forever
Indeed.

This will be the future pedestrian connector south of the new footbridge.
https://www.bruxelles.be/sites/default/files/bxl/workflow/20-09-2021/20%2009%202021%20OJ%20point_punt%20(033)/033_Plan%20de%20situation.pdf

Set as proposed:name for the moment because the new name has not been officially voted yet.
https://www.openstreetmap.org/way/984636162

It would be nice to add a wikidata entry for it, btw.