Charles Elson, a retired professor and founder of the corporate governance centre at the University of Delaware, said he does not think the vote will influence Ms McCormick, who issued a decision based on the law.
However, John Lawrence, a Dallas-based lawyer, said the new shareholder vote gave Tesla a strong argument to get the ruling overturned.
He expects Mr Musk and Tesla to argue that shareholders were fully informed before the latest votes, so Ms McCormick should reverse her decision.
If the ruling stands, then Mr Musk is likely to appeal to the Delaware Supreme Court, legal experts said.