Slowly but surely BTC is inching down through its last known support in late May above the $2000 mark. With the impending hard fork August 1st, BTC will continue to trend downward due to the speculation.
Those that follow crypto's, and trade, know that anything that happens to LTC, ETH or any of the ALTS, happens due to what BTC is doing.
With all the speculation going on, and from what we know happened to ETH when it forked, we can make an educated guess that BTC will drop at least 50%.
If BTC is cut in half, one can assume, all other crypto's will be cut in half.
Lots of IF's. When so many if's are associated with an already volatile space, I think it would be crazy to hold any coins until after August 1st.