Don't have a lot of information but expect it will be at least 4 weekly if not even daily at times. 18,000 passengers between DUB and Beijing in 2012 while another 12,000 to other cities in China. Having a direct route will increase demand at either end anyway and cargo will be big on the route.
Dublin Airport Twins with Beijing Airport in Push for China Link :: Routesonline
I'm sure there will be news on EK and EY at some point in 2014 to.