Ideas- you wont like em
1) negotiate ..whatever we need to do to maintain participation in the US market
eventually we may evolve to be something similar  to the EU common market 
-this will include monetary union   perhaps we move to the US dollar
-unified border controls   - shared military  etc
2) focus and force our regions to focus on highest -best use 
- end  revenue transfers  ie Quebec 
- stop govt corporate welfare   ie Bombardier