In the Name of the Tsar Price
If you'd prefer to buy the game's DLC on a case-by-case basis, you'll have to shell out $15 for the standalone version of this DLC.
They Shall Not Pass is $15 as a standalone piece of content and we expect In the Name of the Tsar to stick to this price point.
If you think you'll be playing Battlefield 1 for a year or more, it might be worth it to invest in the Premium Pass.
The Premium Pass will save you $10 on all four pieces of DLC and it comes with some nice perks including two weeks early access to the DLC.