I posted about this exact issue at #527
EC notice on BREXIT issued, licenses/certificates invalid
With TM
possibly taking this to the wire (the wire legally being 21st Jan) the impact on those airlines/tour operators currently circling the drain may be terminal. And this is a matter of the public perception regarding risk to their pockets and their holiday plans. Government disclaimers will have little impact (for most us, the square root of not a lot).
What was it Bojo said about business?