Below are some potential issues that IMO, may impact future voting patterns. This is outside of potential government scandals, and normal political discourse discourse). I would not try to speculate on the specifics of any of them.

1) The role of Canada's military beyond Canada's border defence.

2) Changes to health care and other social programs

3) The environment and climate.

4) The economy and taxation (especially corporate).

5) The defecit, debt.

Do you have others?

6) Erosion of government services.

7) Quebec and the constitution

8) Regional economic disparity and government economic support to industry and infrastructure.

9)Canada's relationship with other countries, especially the USA.

10 Federal/provincial issues and changes in provincial governments.