Hi SarahS,
Apologies for the delay.
We spent some time looking at last year reviews and tour manager's notes and we can't see we had any issues with the market opening.
This year Christmas Market schedule has not been released yet but we have no reason to believe that the market won't be open on the last Friday in November as per usual.
With regards to your Burma visa, there will be time to have it processed when you come back. Send your passport in after your trip to Bruge&Lille, the process time is approximately 2 weeks.
Kindest regards,
Elisa