Nissan is already in Europe. I drove a Nissan Primera for 2 weeks that last time I was there and saw the US Infiniti I35 there badged as a Nissan Maxima. There is no Acura or Lexus in Europe either...it is all Honda and Toyota...and my guess is it will stay all Nissan too.
I am not sure why Ghosn would persue this but he must see a profit somewhere.