This is my theory that I just came up with! It's sound very crazy! It's got to be the most insane theory you could think of!
We know Pink Diamond was SHATTERED by Rose Quartz but what if she was reborn as someone else?
Think about it, Pink Diamond is the Rose Quartz of The Great Diamond Authority! Other Diamonds are very similar to CGs like Blue Diamond mourn the death of PD like Pearl. Yellow Diamond is kind like Amethyst since she is trying to oppress her emotion and White Diamond is probably like Garnet since we don't know about her and she is the leader of Diamonds and this is where my theory came in.
Both Pink Diamond and Rose Quartz are Dead (Yes I know Rose Quartz is technically NOT dead but she is gone) so what happens to Rose Quartz?
Well, She give birth to Steven Universe that is like a reincarnation of Rose Quartz. So what if Pink Diamond was reborn as someone else?
There a theory that the location of Pink Diamond's Shards are inside of The Crystal Heart! What if She was brought back but as a different person? Like this person have the power of Pink Diamond but doesn't know about Pink Diamond.
What do you think of my theory of Pink Diamond being reborn as someone else?