The points threshold will be carefully set to attract the talent the UK needs. Skilled workers will need to meet a number of relevant criteria, including specific skills and the ability to speak English,
New points based system: https://www.gov.uk/government/news/h...gration-system

prove your knowledge of English, Welsh or Scottish Gaelic. Exceptions include if you're over age of 65 or have a health condition that would make you unable to
How to naturalise as a UK citizen: https://www.gov.uk/apply-citizenship...eave-to-remain