Previously, The Predator was set for a February 9 release in 2018 with Black Panther opening the following Friday on February 16.
While Black Panther will still be a new Marvel property, and it will be opening outside of the traditional summer window, the movie is certainly expected to do some big business, likely only giving The Predator one decent weekend to make any money.
Certainly, as Shane Black points out, not opening against a Marvel movie is likely a good thing.
The new release date for The Predator is August 3, 2018.