According to CoHTitan there is a team currently negotiating to purchase the CoX property and data. It might be possible - might - for CoX to be restored.
From a post on July 9th:
t is real in the sense that a team is working with NCSoft to purchase the game and associated IP. They do intend to restore the original game if it is possible (it appears to be) - what we don't know is whether the character data is still intact. The account data is extremely unlikely - basically no and that may be due to legal issues with handing over financial data to a game closed for nearly 2 years. The time period for the sale is likely within the next 2 months unless they hit an issue that slows it down.
A Reddit thread discussing the issue is here.