So can I do Lion's Landing and Assault on Zan'vess without spoiling anything of the Operation Shieldwall story or will there be a point where an NPC sends me there like with the A Little Patience scenario?
They are not very revealing in terms of lore
We have faced trials and danger, threats to our world and our way of life. And yet, we persevere. We are the Horde. We will not let anything break our spirits!"