Being a few days into the halving and with no new bump in price, I don't expect to see a big drop now,at least not quickly. I think the build up to 650 was probably due to the halving and was all built in. We could see normal changes in price, but I would be surprised to see it go down significantly.
Even if it does go down, then I still can't see it go below $600 as I believe that price level will get supported long enough to not let it fall below it. Some hours ago the price has gone up nicely where it stands at the $670 level right now. I'm interested to see where it goes from here.