Never is a long time but doesn't look like it's happening in a hurry at any rate. The UKs rise was based on leading the industrial revolution but it's a bit lagging in the AI one. The few leading companies we produce like Deepmind and ARM get bought by the Americans.

The UK has less chance at becoming a superpower than Canada or Australia, neither of which are in the race. If the EU becomes more cohesive, it might, and then the UK will be the smaller country allying itself with a superpower for protection.