Will Rosalind See Again?

Upon realizing her true potential and resurrecting from the dead, one of Sabrina's first acts were restoring Roz' vision after she had gone completely blind.

Do Rosalind and Harvey break up?

With little options left, the pair decide to split up: Sabrina will go to the Academy and Roz will try to get through to Harvey. Before Blackwood's wish, Roz came clean to Harvey about being a witch, something he had trouble digesting because, you know, he already dated a witch and it didn't go so well.

Does Sabrina cure Roz?

Roz's imminent blindness, which Nana Ruth described to be the curse of Greendale witches, was cured by Sabrina in Part 2. The curse is actually a blessing in disguise, and good for Roz, her power remains even after Sabrina cures her.