http://www.sciencemag.org/news/2019/08/boris-johnson-pledges-ease-uk-research-visas-plows-ahead-toward-brexit

Boris Johnson at the Culham Center for Fusion Energy where he announced plans for fast-track visa system for scientists. 

U.K. Prime Minister Boris Johnson has announced plans to make it easier for scientists to come to the United Kingdom, an important concern for researchers. "A fast-track immigration system for talented researchers and technicians will set the U.K. on the right track to maintain the U.K.’s position as a science and engineering superpower," Ann Dowling, president of the Royal Academy of Engineering, said in a statement. But scientists remain deeply worried about damage from the United Kingdom crashing out of the European Union in October, a risk that Johnson has said he is willing to accept.