Projected results from the election in Brandenburg today.
FDP ~ 1%
Greens out, losing more than half of their votes from last time, dropping all evening long from 5 to 4.5 and now 4% and getting no two direct mandates (which according to exotic German laws would allow them to enter parliament with a full faction even if staying below 5%)

.
SPD winning probably by a very narrow margin - but AfD probably getting a blocking minority.
CDU loses by a record, and if it enters a coalition of SPD (and maybe BSW) it will lose profile and reputation the same way it would when enabling a minority government of SPD and BSW alone by tolerating them - vote for CDU and get the Reds nevertheless. If their tolerance is even needed, that is.
By numbers, a coalition of SPD and BSW is possible. My dearest condolences.
FDP was
ANNIHILATED in three elections in a line now. Its absolutely possible that they let the national government now collapse. Chances are I say 50:50. If they stay they must not even care to participate in next year's national elections - they would get buried and their grave forgotten on the same day.
German people is sick, done and over with the national traffic-light government.
When the FDP entered the national coalition government three years ago, I spit my dinner on the screen in laughter. They now pay the price. For their decision I mean - not for my dinner.