Sadio Mane will probably really go to Bayern and he would also fit well in there team. There are even rumors that Bayern want to sign Cristiano but I can't imagine that. Lewa's departure will weaken Bayern a bit and they need a good replacement for him. Very exciting!
The info Sadio Mane will leave Liverpool next season is 90% correct. He chose to end his career at Liverpool this season because he wanted to try a new challenge and FC Bayern Munich became the strongest club to get the services of this Senegalese national player.
At the moment there is still speculation about where he will go and Bayern are still first. But I expect another surprise here for Mane because with his talent now and the opportunity he has there will be a lot of clubs fighting for it right now.