>>>Mordechai and Esther today are still currently buried in Iran with the government allowing visitors to the site.
I’m not saying they aren’t but Mordechai is mentioned in Gemara Menochos as having been in Eretz Yisroel after the second Beis Hamkidash was built. Why would he have gone back to Iran/Persia afterwards? (I can think of many possible reasons but still I question if it is so clear that he actually did)
>>>Just in the last decade they have recently been trying to bring their kevorim to Israel with no Success.
Even for the purpose of bringing them to Eretz Yisroel who would possibly take it on his responsibility to dig up their kevarim?