Based on a cursory read of the situation, it seems similar (at least on its face) to the Waymo vs Uber situation. In that case, Uber payed a Waymo an equity stake and signed an agreement about which technology they would/wouldn't use. The key person involved also was sentenced to 18 months in prison (pardoned after 6 months).

In the extreme case it may result in OpenAI having to abandon their in-progress consumer hardware products, but honestly that might actually be good for them. I really can't see all that investment being worthwhile. Better for them to stick to their core competency.

More realistically - OpenAI will cooperate, the specific employees involved will be punished, there will be a settlement, and this whole matter will be forgotten.

Apple may get a chance to rifle through OpenAI's trade secrets. And they may win an outcome where there is direct court supervision over what OpenAI is allowed to build and how.

Basically nothing. I mean they’ll have to pay up but money clearly isn’t something OpenAI worries about. They’ll just raise more from the infinite vc money tree.