It's common for the tax amendments announced as part of a budget process to be split into two tranches: one to be introduced in a spring bill, the first budget implementation act; and others that, for one reason or another, such as their legislative complexity, the desire to hear more stakeholder input, and the necessity of the measures being enacted by a particular date, can often be deferred. They could be included in a summer release, perhaps with revisions based on stakeholder feedback, and then be included in the second budget implementation act tabled in the fall.
The measures I believe you're referring to were not included in this. They could be tabled in the fall, the second budget implementation act for 2017.