False, or at least misleading information during BOD/AG meetings might have been intentionally shared imo (depends on what they knew at that stage and if it can be proven). If proven this would be more than sufficient for a legal case. Fake and fraudulent PR statements would not be substantial in such a case, any connection to management would be hard to prove (I do not believe it was them).
Future company would have the funds to cover any claim from current (screwed) shareholders, but I assume they will rather spend millions of $ on “super-talented” lawyers to avoid such claims. I find it ridiculous that (for current management) it is more important to deal with management bonus & incentives in a future plan than finding an acceptable solution to shareholders.