Show me a link to where Chinese courts have ruled VIE ownership to be null and void please? I certainly have not seen such an example of the VIE format failing in legal courts yet...
Well one option is to seek an investigation by the US Attorney where the SEC filings were made, Washington or New York, and if those filings were false there should be a criminal prosecution leading to prison terms and restitution for false filings and mail fraud etc. ordered. Cases of far lesser consequence are pursued every day. There are plenty of victims just from IHUB posters alone to get the attention of the appropriate US Attorney.
Information on the validity of the filings may be revealed in the Starr proceedings.
If any defendants hide in China the government there may turn them over to avoid sanctions against Western investment in their companies or for a host of other reasons.
Any defendant not turned over will not be able to travel as International arrest warrants will prevent that.