My prediction is that the Observer will publish a couple more articles on this, and unless they find anything extremely damning, this will all die down.
In the meantime, I suspect Penguin will continue printing TSP, TWS and LL, because there is still a market for these (albeit a reducing one). I don’t think they’ll publish OWH though, as the opportunity to promote it is non-existent and I don’t think it will sell well in light of the Observer articles.
I feel like this is the most plausible scenario, but I am disappointed that RW won’t face any direct consequences such as financial penalties. In an ideal world, I’d want her and Moth to pay back some of their earnings from the books and film in recognition of the lies they told in the books about the timeline of everything happening, the background of how they lost their house and the truth of his health condition.