Should courts reopen cases vs Toyota following allegations of destruction of evidence?

A few days ago I reported the news that a former high-ranking attorney for Toyota alleged that the auto maker conspired to illegally conceal and withhold evidence in Toyota rollover lawsuits. (see here) and I said "if true, this would be huge! Stay tuned." Today, aboutlawsuits.com is reporting that following those allegations "several attorneys are attempting to reopen cases against the automaker." Go here for the full story.