The contract to expand the coal mine was signed a long time ago, it wouldnt be signed now. RWE, who mines the coal there, would have to be compensated if they werent allowed to mine there.
The compensation would probably be so high that its cheaper to just build renewable energy elsewhere, and the wind turbines are at the end of their lifespan anyway.
I just hope that we dont get a right wing government anytime soon that gives out the next stupid contract to mine even more coal there.
Because, in the end we have more coal underground than we ever need or should use, its not a question of finding coal, but instead of how or if we should mine it.