“The United Kingdom and the European Union have been trying for the last 11 months to negotiate an agreement that will define their future partnership after the UK formally left the bloc in January. But both sides remain stuck on major points — fishing rights,guaranteeing a “level playing field” on government subsidies and regulations, and how to enforce any deal — with very, very little time before the year-end deadline.
Getting a deal is in the interests of both sides, but reaching, ratifying, and implementing any deal in three weeks is going to be a challenge — and might not be feasible at this late stage.
But without any framework, the EU and the UK could face major disruptions in January on everything from trade to transport. It will be painful for both sides, but the UK, now all alone, is expected to feel that fallout more acutely, which will pile on to economic hurt brought on by the pandemic.”
https://www.vox.com/22167634/brexit-deal-johnson-von-der-leyen-deadline