>>15215187In a best case scenario, to hell.
Unfortunately it is far more likely that a part of its posters will swarm other boards and probably end up hijacking one temporarily or getting absorbed by another board (like our /qa/sisters).
Another part is likely to migrate to telegram, normoid shitholes like sheddit/shitter or obscure social media alternatives like gab, minds or whatever trump uses.
The remainder either grows up or flocks to /pol/-like boards on other image boards like infinitychan or endchan. I also would not be surprised if they created their own imageboard.