The talk of Ottawa going after captical gains is pure speculation since no one in the government finance office has even hinted they would consider it. 

The author is therefore just repeating a rumor. It would be better if he did not because rumors sometimes feed on themselves and get blown out of proportion. Imagine if people believed this rumor and started cashing in their assets only to find out that there was nothing to it.

If the government does increase taxes on capital gains the increase will likely not kick in for two years.