Latest ZDP poll on Hesse (comparsion to 2013 results)
CDU 26
Green 22
SPD 20
AfD 12
FDP 8
Linke 8
Note sure CDU-Green will make it past majority. Of course if that is out then it will have to be Green-SPD-Linke.
If this is the result then it's Traffic light or Jamaica. But as was said above me, if the SPD are below the greens, then Traffic light is almost an impossibly. Why would the SPD sign up to be a minor partner under the greens? Just makes their decline nationally look even worse.
But after 2011 Baden-Württemberg election SPD did accept becoming the junior partner of the Greens since they had less seats.