1/ Do you plan to fly on an Air Canada 737Max after its' inevitable return to service: Possibly, but more likely WS.
2/ Will you alter your flight plans to avoid the 737 Max : Doubtful. About to book some any day. Either the kinks will be worked out, another crash will have grounded it indefinitely, or I suspect most likely, the current grounding will still be in effect and I will end up on some other aircraft.
3/ What date did you actually first fly the 737Max again (Hypocrite clause): -- Haven’t yet.
4/ If 3/ has a date, what drove you to reverse your position as stated in 1/ and 2/ ? -- Winter 2019/20.