I guess market will continue to fall and I will wait BTC on $5k-$6k. And then will become a buy time for cheap altcoins. But, maybe, start to buy today with a little parts is not a bad idea too.
I do not wait that Bitcoin will fall up to 5-6 thousand. However, as the market is very volatile, it is better to wait for the day, when alts and BTC coins are sold for the minimal prices. Just choose the right moment.