Still kinda iffy as the amount of power harvested by current solar blankets leaves MUCH to be desired. And the Battery performance is still an issue. Some thing like Fuel cells might be the better option but nearer term I see Hybrid as the best option for all military vehicles. Sure you can augment with photovoltaic blankets but that engine is a onboard power generator. That means electricity for equipment and drive, heat for cold weather and the fewest trade offs.