It could be that they are trying to let the drivers compare the new wing to the old wing, sort of like the 2008-2009 changes. To me the car looks like a E22 with a few E29 looking pieces and show car pieces.
At their filming day at Jerez, they completed the allowed 100 km (22 laps). Supposedly, they were able to "validate", not develop, improvements and solutions derived from new hardware and software fixes. Apparently, other Renault teams were on hand to share in the joy.