I’m not familiar with the source material, or with this particular production - Is there any particular reason people think it might go to Broadway? Or are you just asking because it’s Van Hove?
If it’s the latter, then I’ll remind everyone that he’s had an enormously prolific career, and the vast majority of his shows - including the recent ones - have not played on Broadway, or gotten even close. If you want to see this production, I would definitely not recommend waiting for another opportunity - again, unless I’m missing something about this particular piece of source material that might set it apart.
As for the festival, I’m most excited by Ostermeier’s Hamlet. I saw a professionally filmed video of it some years back, and I didn’t think it was quite as good as his Richard III, but everyone I know who saw the production live said their minds were absolutely blown by it. I’m excited to give it another chance, this time in a live performance. It’s been kicking around in European repertory for over a decade, but I’ve never gotten a chance to see it.