It will be interesting to see whether this business-to-consumer issue gets resolved reasonably quickly.
I think some brands will quickly find/set up a stockist in the UK. Others will just stop shipping here and write the UK off.
I reckon many of the clothing brands will keep trying to find a way to sell into Britain. Europe has had a retail shocker - much like the UK - so not all brands can afford to cut out UK opportunities, especially long term.
On the other hand some small niche brands just may not have the resources to service the admin for now.