Can UST ever get back to 1-1 peg?

I have invested in UST and depositted on anchor a bunch of money… Given that UST is trying to fight back to its peg, I don’t see a motive why to sell it at a loss since I’ve got time. i.e. I can wait 5 years if needed to get the money back.

My question is, what does need to happen for the peg to happen?

Or in what scenario would it not go back to peg ever?