I sincerely hope that Ghislane Maxwell had the foresight to cash in all her investments and have a rollicking good time over the past year; vintage champagne, expensive escorts, finest Siberian caviar, etc. I don't think she will have to be concerned about her long-term asset performance. I give her a 30% chance of surviving to testify, and <5% chance of surviving 1 year in the general prison population - being seen as a pimp of young girls will not endear her to Big Bertha et al in Bedford Hills or a similar establishment - and I don't see a socialite doing well in protective solitary.
I'd have been more dismissive of the "Epstein didn't kill himself" conspiracy theorists had they not loudly and publicly predicted his "suicide" in advance. Hence, I think they start with the advantage with regard to predicting the future of the soon-to-be-late Ms Maxwell.