My understanding (open to comment): both experimental wings have the same airfoil, but built different ways (with/without joint behind leading edge).
Test flights will determine if the jointed version is smooth enough to produce the same laminar flow.
I'm assuming the different construction methods have implications for manufacturing cost, maintenance cost, and of course performance.
The pods at the root and tip of the test wings carry observational/test equipment - they would not exist on production wings.