Not true imho. He plays in a position that England are already well off and theres also about 8 defenders that are currently ahead of him in the pecking order.
Young, NRC, Huddlestone and onyohu are all more likey to get call ups imo.
I think Onuoha is a tremendous defender (Comfortably better than Taylor) but I think his complete and utter lack of any ability whatsoever in possesion of the ball will cost him full international recognition. But he'll be a very good player for City for years to come, and I'm happy enough with that.