You will have to wait for the update.
USGamer reports that Madden 18, due to be released on August 25 this year, will not support 4K and HDR resolution on the PlayStation 4 Pro. Probably these options will be available for future updates.
As GameSpot adds, EA may be waiting for the launch of the Xbox One X in November this year. Then the EA should prepare a cumulative update for the two consoles in the 4K and HDR range. More Madden NFL 18 news we will post here in madden-store.com, you can keep eyes close in our site.
19 Aug 2017