Man, I feel with you. You are between a rock and hard place. Unaffordable home tuition at UK unis, free education in Scandinavia jeopardized by BREXIT.
From the moment article 50 is triggered, there is a two year period of transition. During this two year period, the UK will remain a full member of EU and you will be eligible for free education in Sweden. We don't know when article 50 is triggered. Cameron prefered after his departure in September '16. So if this is the starting point, the UK will remain until Sep 2018 a full member of the EU. You may have the first year covered under EU membership. If no provision are made, then you may be liable for international tuition fee. Some unis may reserve scholarships to help internationals. Normally these goes to US and Asian students.
Your option of affordable postgrad education in Europe is severely limited by Brexit.