This is being brought up now so that the gag order stays in place.
It is Merchan that would have to declare a mistrial.
Everyone knows how that goes.
Merchan will also be the arbiter of if the website is valid and whether it had any impact.
This isn’t going to change anything unless Merchan goes even further and uses it to push out sentencing, or tactically hurt Trump in some way.
Remember that Supreme Court “Investigation” of the leak? How’d that go?
Merchan investigating his Court, good luck with that.