http://badassdigest.com/2013/10/18/look-at-all-my-sith-darth-vader-tv-specials
Adywan started a thread about this already, but I thought it was worth posting here also.
According to this, it appears Disney is still planning a Memorial Day release for Ep7. They're yet to say anything official in terms of an actual date, but I think it's worth noting that none of the other studios have set anything big for that weekend either.