Some of last year's type rated drivers submitted their applications in October/November but were not invited to interview until January.
The best is to make sure you have your e-mail confirmation from HR that your application is in the system.
One other suggestion, that may show your interest, is to access your application every couple of weeks and update flying hours or failing that any other element even if you change it back again.
This has the effect that the computer registers the date and time of the "update" by you and will probably be noticed by the HR person and shows you are still interested.......and waiting for their response....
Good luck to all applicants....