With respect to assignment sales, there are two measures in place that are affecting the tax treatment.
First, with respect to GST application, the government has clarified that the GST will apply in all assignment sales. That's one thing.
With respect to the income tax treatment, the tax treatment of assignment sales done within 12 months has also been clarified. In all situations, it would be deemed to be business income and fully taxed, as opposed to potentially benefiting eventually from capital gains treatment.
With respect to the effect of these measures on assignments, it is too early to say anything. As you suggested, they were put in place relatively recently, so we don't have data on them yet.