It wouldn't be surprising if he went to Bayern Munich because I remember he has a history there as a football player. I don't think Xabi, who did wonders in the Bayer Leverkusen story, would go directly to Bayern so as not to disrespect them. Maybe it could be an option for Liverpool. Liverpool could be better with him in the Premier League.
This is business and there's nothing wrong if he finally decides to leave for Bayern Munich. They've both had a good time as he took Bayern Leverkusen from last season to go top of the Bundesliga League Competition.
T's the best decision he'd take for himself. Spending another year with Leverkusen is not something I see him doing, he should be smart enough to make swift moves.
Moving to Liverpool? That shouldn't be his first moves, I think he is making progress, he should follow a club that can back him up, he had a great future ahead of him. I trust that he will utilize it very well.
Meanwhile, Harry Kane has been reported back from his recovery process as he was not allowed to feature for England during the last two fixtures against Brazil and Belgium.