You Can't Wait Months Between DLCs
If you want or expect rapid fire Battlefield 1 DLC from EA and DICE, you might want to think about skipping the Premium Pass.
We expected DICE to put some space between its DLC expansion packs but we, and others, were surprised about the amount of space between They Shall Not Pass and In the Name of the Tsar.
In the Name of the Tsar will be out in September and Turning Tides is scheduled for release in December. Apocalypse is coming in early 2018.
It'll be awhile before all of the Battlefield 1 DLC is available for Xbox One, PS4 and PC. If you think your interest in the game could wane between now and then, it might be in your best interest to buy each DLC a la carte.