Van Ginkel has the potential to be really good. I'm not sure why Romeu is still around. He'll fill the honorary Winston Bogarde Chair (for "should at least be squad team" guys who don't play) role at the Bridge this season.\
Chelsea need one more striker and if they are getting rid of Mikel, they will need to replace him. Van Ginkel, Ramires and Oriol Romeu can't be your only cover at holding mid behind Matic.