In 2011, another meltdown happened in Fukushima, mere months after the extension decision had been made. This caused large anti-nuclear power demonstrations across the country, the CDU to lose power in the state of Baden-Württemberg – a state which had been governed by the CDU since the 1950's – and the Green party to end up ahead of the SPD in that state, leading to the first Green minister president and Green-led state government (although other issues specific to Baden-Württemberg also influenced the state election in favour of the Greens). The Baden-Württemberg election was a mere two weeks after the Fukushima incident.

Merkel's government attempted to meet public sentiment by walking back on the decision to extend nuclear power phase-out deadlines, and in the summer of 2011 the Bundestag voted with 513 out of 600 votes to increase the phase-out speed. The vote was by name (meaning every member of parliament went on record with their aye, no or abstention) and if I recall correctly it was also declared a decision of conscience rather than subject to party discipline. Anti-nuclear power sentiment in the general public was at its highest.

There has essentially been no further attempt to revise the legal situation. Opinion polls have, as far as I am aware, consistently recorded a clear majority against using nuclear power to generate electricity. Except for the AfD, no party in parliament currently supports extending nuclear power use or building new plants.