Same exact issue, game worked just fine then once the DLC was dowloaded and I tried to launch the game, it just gets stuck on the black loading screen. It isn't frozen because the little Inquisition logo in the bottom corner is steadily flashing. I contacted EA support, the had me start my PS4 in safe mode and rebuild database... no change. He just told me to delete the DLC and try the game, then if successful to redownload one by one until I encountered the issue. My slow internet will have me waiting ANOTHER two days after the two I waited to install the DLC in the first place, so I'll have spent my entire week watching this game download. I'll check back when I know if redownloading the DLC fixes the issue.