Seeing how the HyperV concept is already exploring this method, yet is much farther behind the DPF in meeting the criteria for fusion… I wouldn’t see a good reason to want to redesign the DPF at this point.
Electrode wear is going to be a problem, but an engineering problem. Let’s get to the point where we’ve proven Q>1 with fusion and/or aneutronic fusion with pB11… then we can see how much redesign is needed to make it practical for a power device.
Constantly redesigning is time consuming. If the physics prove feasible (hopefully within a year or two), then there will be an increase in attention to all the engineering problems. Electrode wear is not going to be a problem until after they cycle up to several shots in a short time. But I think that they can prove the physics before that.