Bayern are having the best of times. They are playing very steadily and I even think they can reach the Champions League final. Although Galatasaray are also playing well both away and at home. But I think it will be an easy game for Bayern. Galatasaray are strong in the Turkish League, but Bayern are much stronger.
Considering that it's the group stage I don't think it's that important, because Bayern will get out of the group anyway and a win over Galatsaray has only a small impact. But I wouldn't make any predictions about the final so early, we don't know what kind of opponents they will have
That's not hard to predict Bayer Munich in this group with the current performance we see from other teams in the group. So far Galatasaray is the only team that performed a little bit better than other teams and they won four points in this game while Manchester United lost both games they had and so far Bayern Munic is far from the there other teams in this group.