Rashica, 24, has been tipped to join RB Leipzig and even struck a personal agreement with the club.
However, Werder were not satisfied by their €15m offer and other clubs have come forward.
Sadiku, a well-informed Kosovan journalist, says ‘it is likely’ that Rashica will move to the Premier League next week.
And unless of any twists, Birmingham will be his destination with Aston Villa.
Kosovo international Rashica scored eight goals and delivered seven assists for Werder in the 2019-20 Bundesliga.