Those emails are a gift that keep on giving.
As summarized at Electoral-vote.com in their
This Week in Schadenfreude section, there are a few other things those emails may have revealed.
First, some of the things we already know:
Jones turned the complete contents of his cell phone over to his defense team. And the defense team turned them over to the plaintiffs... without redacting or withholding any of them. The plaintiffs know all. And once the gaffe was revealed, Judge Maya Guerra Gamble refused to declare a mistrial or to seal the contents of the phone. We are assuming that she ruled on the merits, but it surely didn't help Jones' case that he's been going on air and slamming her as an idiot while the hearings are still underway. In any case, Gamble said there might have been time for such considerations if Jones hadn't disrespected the trial process and dragged his feet on discovery, but now he must reap what he sowed. Reading between the lines, it sure looks like the plaintiffs aren't the only ones in the courtroom who hate Jones. The judge and his own attorneys apparently hate him, as well.
And it still gets better. Everyone who's been looking at Jones, and hitting a brick wall, now wants a copy of the treasure trove. That includes the Dept. of Justice and the 1/6 Committee. And the plaintiffs' attorney is delighted to send it to them. He specifically told the judge he would do so unless she put a stop to it. She issued no such order.
(Emphasis mine.)
So it looks like the emails may have already been distributed, regardless of any possible lawsuits about attorney incompetence.

And then there is the other stuff...
There appear to be other... goodies on the phone that could prove embarrassing or incriminating. For example, there have been allusions during the current proceedings to "intimate messages" between Jones and Roger Stone. Who knows what exactly that means, but we could totally see them being gay for each other. In a much more criminal direction, a filing in one of the other Sandy Hook cases—those plaintiffs' lawyers already got their USB sticks with all the text messages—asserts that child porn has been found on the phone.
And who knows what else may be in those emails?

In case you are interested, the site has links in each paragraph to the article each was based on.