Hi,
and I don't agree. Flying on weekends is much more expensive in and from Europe. We talk about 100-150€/135-200$ which it would cost more a trip. Speaking about vacation, hopefully its clear that longer and longer discussions minimizes the chances to get vacation at this time in August. July and August are normal vacation times, so you have it to say in advance. And don't forget ppl that need a visa, that minimizes time around 6 weeks to get it in advance.
The time that is chosen is only 3 months from now so its hard enough, don't make it harder bring the discussion about the time to an end soon and publish the date!
It's not about what and how right now, the important thing is only when and where. Not "possibilities" are from interest, except you want to keep it as an NA thing.