I don't think the exhaust will be the issue, that bumper is pretty slim. I'd bet a pair of Baja Designs Flush Mount S2's would fit the bill. The light shouldn't have any issues dealing with the heat, but would probably want to insulate the wiring a bit more and route it away from both tips.
I wonder if Ford will offer the standard push bar with KC lites or if they will expand their options as well, I was really hoping for a factory fog light option!
What about the lower grill? I heard it's smaller than the Gen 1. Maybe you could fit 3 Baja Designs XL80s there.
For this new truck, seeing how front lights mounted low may be an issue with the intercooler location, I would go with the new KC HiLites 6"Sport light bar mounted on the roof. Those things will light up plenty far out in front to see where you are going and throw to the sides and low as well. Maybe two strategically mounted 6"Sports mounted down on the bumper somewhere and you have all the light you would ever need. Out back, I would go with the lights mounted up high on the front of the bed - like Jimbo had at TRR (if the aluminum will hole them-lol). Otherwise maybe a 10" lightbar mounted on the rear middle seat headrest would be best.