Yes, hope can extend torment.
Interestingly, there are quite a few scholars who argue that Pandora’s Box was misinterpreted and misunderstood by most people.
The entire idea behind Pandora’s Box is that nothing but horrible things come out of it. So how, then, can the hope she sees at the bottom of the box possibly be a good thing? What truly good or tangible thing does hope represent? Hope is just hope, nothing more.
That said, whether or not hope helps or harms will depend on each individual and the experiences they’ve had in life. It’s 50/50.