Maybe a few, but Sony would have a hand in the dev and claim IP rights for true exlusives (Bloodbourne) or write a fat check for timed exclusive or exclusive content (Destiny, Sony doesnt bother with timed like MS).
At the end of the day, MS and Sony are going to be relying on first parties for most exclusives and 3rd party relationships for anything extra. Nothing will come easy anymore without a 5:1 ratio as someone has already stated.
It does however make it harder for MS to make deals themselves, but we have all seen it can still be done.








