The chances of ever getting any reimbursement through the actions of the SEC are slim to none. If so it would take forever and would be at best pennies on the dollar. What they most likeky will do is levy fines which will further drain the company's resources and drive it's value lower.
When any regulatory agency gets involved in such matters they are going after the low hanging fruit first. If this is a slam dunk fraud case they will take action but not necessarly in the interest of the retail investor. Remember, these are bureaucrats first who are looking to justify their fat salaries while sitting on their fat bureaucratic butts. While some government regulation is necessary it is not always in one's interest to involve them.
Ronald Reagan said it best...
"In this present crisis government is not the solution to our problems, government IS the problem."