The discovery that made warp drives more feasible had nothing to do with dark energy, but with the shape of the warp bubble. So yes, we don't know whether or n

The discovery that made warp drives more feasible had nothing to do with dark energy, but with the shape of the warp bubble. So yes, we don't know whether or not warp drives are realistic, but since it would apparently not require as much energy as previously thought they are therefore in theory more feasible.