As shown in the model, US pursue stealth tanker. If this kind of aerial refuel success, any aerial platform of US could extend their operation time unlimited.
US already emphasize usage of power in the engine for their 6th gen. fighter having high possibility to have laser weapon on board. Combination of 6th gen. fighter/UCAV with laser and the stealth tanker could provide unlimited magazine of laser in air-space.
This kind of approach could supplement limited number of high-end fighter.