Merkel expected to stay Chancellor once her seat is confirmed.
CDU/CSU do not have enough to govern alone, or with FDP. A Green-FDP-CDU coalition will just about pass the 50% mark.
Alternative fur Deutschland wins East Germany and gets 13.5% of the vote in total (third largest), including 90 seats in Parliament.
If SPD joins a Grand Coalition again, which it seems it must as FDP-Green is not compatible, then AfD will become Germany's Official Opposition.