The most likely scenario is a settlement at a lower price imo. Musk was never going to pay the original offer because it was / is well known Twitter has a bot problem. He surfaced the issue and is threatening to scuttle deal based on twitters throttling the API. Which is limiting the due diligence ability of Musk’s financiers to appropriately evaluate their investment.
Now the negotiations will take place and I suspect we will see something like a $10-$20B purchase agreement. Musk will have opportunity for due diligence if they sue. If they don’t sue him, then the shareholders sue Twitter (ironically probably some of the financiers).