Primal battles in 2.0

[Keres]

I don't mind if the strategies change, I just want to know if they'll exist, and if the rewards will be the same (AND/OR new ones)

"Strategies and balance," to me, means the current iterations of the fight.

The way I interpret her post is that the fights as they are today (along with their loot rewards) will be gone in 2.0, but those same primals may return in new fights or content.