Yes, there is certainly a possibility of integrating the basic amount—an earned income tax benefit like the WITB, or the Canada workers benefit—with, say, the GST tax credit to make a comprehensive package for lower-income workers that would be clear, would provide incentives to work, and would be easy for everyone to understand. It would potentially make sure we're not stacking these tax rates on top of each other, which is an important consideration in tax policy.
On April 30th, 2018. See this statement in context.