Out of Crystal Gems, I think Pearl's Current Outfit is iconic outfit for the fans because if you look at her outfit, You will says "That's Pearl!" But what would happens if Crewniverse decides to have Pearl get a Second Regeneration and a BRAND NEW Outfit?
While I think Garnet will regenerate before Pearl because you know! Saving the best for last! :) Would you be sad to see her outfit get replaced by a new one?
Pearl hasn't got regeneration since Steven the Sword Fighter which was 16th Episode of Steven Universe and it was way long ago! Girl! She earned a Guinness world records of NO Regeneration! I do not count Steven because if he get poofed, HE WILL NOT REGENERATION BUT RATHER DIE! Sorry Steven you OUT! I also excluded Rose because we don't know if she have a regeneration or not.
But I think her SECOND Regeneration will be MORE Climax than her first regeneration from Steven the Sword Fighter which i felt it was ANTI-CLIMAX because she was stabbed by Holo-Pearl. Maybe Homeworld Gem will poofed Pearl since she is only one who hasn't got poofed by Homeworld Gem.
Pearl has been in the same form the longest so maybe a change is in order. Of course she had three outfit changes during this run of episodes. Maybe it is going in reverse order because it had been Pearl > Garnet > Amethyst and now it will be Amethyst > Garnet > Pearl.