The suspension may end up being permanent as it contradicts law already in place by Congress. The FAA has over stepped their authority to demand registration. I copy pasted the following from:
http://hackaday.com/2015/12/21/heres-the-reason-the-faas-drone-registration-system-doesnt-make-sense/>>>>A few years ago, Congress passed the Modernization and Reform Act of 2012, an immense 300-page tome that set directives to the FAA including how airports should be improved, what medical certificates apply to what type of pilot, and special rules for model aircraft.
The Administrator of the Federal Aviation Administration may not promulgate any rule or regulation regarding a model aircraft, or an aircraft being developed as a model aircraft
In the Modernization and Reform Act of 2012, ‘model aircraft’ are defined as, ‘an unmanned aircraft capable of sustained flight in the atmosphere, flown within visual line of sight, and flown for hobby or recreational purposes.’ If these qualifications are met, the FAA may not make a rule regarding these aircraft, so long as they are not flown within 5 miles of an airport.
Yet the requirements for the FAA’s UAS registration do just that. A month ago, 99% of the aircraft sold on HobbyKing were safe from FAA rules. By making a simple rule that anyone can understand, the FAA may have crossed a line, and overstepped the authority granted to it by Congress.<<<