It doesn’t look like Borderlands 4 will make the jump in price up to $80. A visit to the Xbox Store shows that the base version of Borderlands 4 will cost $69.99.
There are other editions of the game that are more pricey, including a $99.99 Deluxe Edition and $129.99 Super Deluxe Edition.
I’ve enjoyed the last Tiny Tina one actually, except the atrocious DLC, but hated the dialogue in 3 too.