So far there's no evidence of this... what evidence does the NOI have? - Have you seen a drawing of this man or reconstruction? Are there remains? How old are the remains? What is the genetic make-up. The facial construction of early modern humans look nothing like anyone living today . Further people adapt to the climate they live in - we take on the phenotype of our environment. It's the environment that cause genetic mutation - this is why Y-DNA isn't reliable for tracing genealogy... It''s subjected to the the environment. That alone makes the NOI theory a bit suspect without evidence, that is.
Again I'm not sold on there being in europeans or 'caucasians' in my family tree before I extended a branch to one. Any genetic memory of the place we call Rome would come from my maternal lineage -whose origins was about 80, 000 -104,000 years ago. As I mentioned they're not the oldest modern humans, according to genetic research they come from the oldest as they set up shop in East Africa. Your environment mutates your genetic code - so it could have been cooler in this area -due to the white Nile in Egypt that flows into the blue Nile in Ethiopia,
Further, just because they set up communities in East Africa doesn't mean they didn't travel the world.