I think it is going to take a while for this to work.
There are several aspects which will need time:
1. Government
There is a regulation regarding a minimum amount paid salary for each worker.
Since the amount is stated in the local currency, it means that every month employee will receive different amount of coin.

2. Employee
Currently many people still don't have a clue about what bitcoin is.
With the current news stated that the price of bitcoin is declining, many people will reject this new idea

3. Technology
Most companies are already use bank as a institution to pay the salary.
I don't know whether there is any service yet, which allow the salary to be distributed in a form of a coin.
Lots of companies will have to change their salary system, which mean more money need to be invested.

4. Only company which used bitcoin in their daily business will prefer to pay their employee with bitcoin.
And there is not much of this type.

Conclusion:
Yes, i think it's possible for a company to pay the salary in bitcoin, but I think not all of the salary will be paid in bitcoin.
Part of the salary will still be paid in a local currency.