A bit out the blue but HRT could be revived as Scorpion Racing. Info from Autosport -
http://www.autosport.com/news/report.php/id/105319
A group of Canadian and American investors are pushing to try and secure HRT's entry slot in Formula 1, AUTOSPORT can reveal, but they may have to wait until 2014 before being allowed to join the grid.
Sources have revealed that negotiations to purchase the HRT company and secure an entry are at an advanced stage, and the plan for a team known as Scorpion Racing appears to have the blessing of F1 supremo Bernie Ecclestone.
http://www.autosport.com/news/report.php/id/105319