Is This a Cause of a Permanent HYPOpigmentation or It is New Regererated Skin Which Will Regain Its Color Once Exposed to Sun?

I had IPL for hair removal. I deveopled brown skin flaking and 2 blisters. After the brown flakes flaked away it left me with a pink skin. After some time some of the pink skin turned into a skin which is lighter than the surrounding skin(not completely white) so I believe that the melanin was not fully destroyed. Is this a cause of a permanent HYPOpigmentation or it is new regererated skin which will regain its color once exposed to sun?