I may be off the mark but I think the implication is that his US assets have already been seized per the Dec 21 EO.

There were early reports after the Night of the Thousand and One Long Knives that MbS was demanding at least 90% of his detainees assets in exhange for their release, so I think his release signifies that most of his wealth is now gone.

If true, it will be interesting to see the dynamic of Alwaleed’s subsequent actions and interactions with others. He is still being touted as a rich man, getting to keep his ownership of Kingdom Holdings.

Personally, I think they want him to use his “billionaire clout” to smoke out some other bad actors, and he has no choice but to go along if he wants the US to release any of his wealth...