I strongly believe that this will be a huge mistake. And even though they might not have any high number of cases etc, it's naive to think that most of the pandemic will be over by then. It's just too much going on today with the pandemic and if they do this, I highly believe it will be an event for several so called "super spreaders" of the virus - even if certain restrictions are in place.
It's a virus, which no one can see, feel, hear, smell or even sense in any way. And believing that restrictions will make the virus not spread due to them, is very naive in my opinion.