Fang Zei said:

Whatever they go with will need to be vague-sounding just as the first installment of the PT and the retconned title of the '77 film were. It's episodes 8 and 9 when the title can actually give something about the plot away.

Episode VII: A Vague Threat

Episode VII: Something Elsewhere Elusive

Episode VII: The Fog of (Star) Wars

Episode VII: Return of the Franchise

Episode VII: Something, something, something... Darkside

Episode VII: A New Film

^ The last one says it all rather well IMO