The hardfork in bitcoin is almost 100% happening august first. A cursory google search will confirm this.

As for the price, it SHOULDNT make the price crash, as in all reality nothing really changes with the underlying value of bitcoin. However, due to people not understanding the mechanisms involved the price will almost definitely hit some turbulence and draw down quite a bit (across all cryptos)

That being said, when ethereum had it's hard fork to make ETh and ETC the combined market cap of the two was actually HIGHER than the cap was before the fork.

So the price can really do anything, it depends entirely on the climate at the time and the people's understanding of a hard fork.

The hardfork is happening. That much we know. The price will have to be determined after the fact. My strategy is to probably cash out whatever crypto I own before the fork and then wait to see how the market reacts and then restructure my positions.