I received a response from CIC Singapore.
They mentioned that it is unusual for students to arrive in Canada more than 3 months before their studies start date as the purpose of their travel is to study, and arriving in Canada more than 3 months before their studies is questionable as studes may have issues at the port of Entry. They do not issue study permits that far in advance. They are currently foreseeing that they will start processing January semester applications in September 2017 and they will process these on a first come first served basis.
Therefore, it is better to wait.
Good luck for your application and let me know when it is approved.