@auem:
Yeah,that's more likely or the remaining people of the said kingdom setting out to their final voyages to entrust those ponyglyphs just made to some chosen men and nations. I, for that matter, can literally bet that we will see at least another ponyglyph in Wano( other than Kaido's one/multiples). Oda won't miss that opportunity.
Hello Greg, new member here and wanted to share a theory with y'all.
So, we know that Raftel can be reached only by deciphering poneglyphs. The only person who reached Raftel was Roger&Crew where they left all their "treasures" and didn't tell anyone what it was.
Base facts:
1. We can presume that Raftel is a location very well hidden because of some hidden reason, not because Roger left it all in "One Piece" there. So the island was very important before Roger's age. It's importance grew at the time the poneglyphs were made guiding the one who can read them to that island.
2. Roger gave himself up after coming back from Raftel and in his last moment encouraged every living pirate,adventurer, free spirit, etc to find Raftel and get the presumed treasure. The statement must have an ulterior reason other then just enticing pirates to overtake the seas and starting the Golden age of piracy. Whitebeard at his final moments stated that when someone finds One Piece/gets to Raftel, the "World will return to sunrise". This means that there is more to the island then treasure/money/etc.
3. The Goverment fear the possibility of someone to reach Raftel again ( look at the time Whitebeard said OP still exists, the Marines & even Sengoku were terrified and very angered) & they even want a great "Cleansing" to stop the ongoing threats (which are people with the Will of D - Luffy and BB , Ancient Weapons - Shirahoshi, and most likely other pirates like Kaido and BM who own poneglyphs).
4. The poneglyphs were made by the Wano stonemasons who were not affiliated with the Wg/The 20 kingdoms and probably were on ally terms with the Ancient Kingdom, as were other countries most likely. The Poneglyphs tell the story of what happend in the Void Century, thus help restore truth to the world and what the WG is really made up from & they tell about how to get to Raftel. So the island Raftel is somehow connected to the Void Century - Ancient Kingdom.
These are the base facts for the theory, which is this (each number correspons to the base facts):
1.Raftel is an island that is the final destination for one who has read the poneglyphs and wants to learn about the true history. It is the island where only the ones with the Will of D. can go/can discover and it is expecting the one true inheritor some day in the future. Thus it reveals to the one who can get there even more then the Poneglyphs tell and made even Roger to leave all his treasures there and when he returned, he kept it all a secret about what the island is, what the Void Century is and so one - meaning it was not the right time for the world to know about it.
2. Roger & crew arrived there and learned about the void century & about the Ancient Kingdom. After learning the true history, he decided to leave all his belongings and treasures there and, upon knowing he isn't the one to bring " sunrise to the World", decided as his last act of help to entice every pirate, adventurere & free spirit hoping that the true inheritor of the Will of D. would most likely be such a person and will manage to get to Raftel at some point. This was the only was as giving information about how to get there would've made Raftel a known target for the WG.
3. We can all agree that the WG/Celestial Dragons did some nasty stuff back in the Void Century and will do anything to keep it from anyone revealing the truth. This was evident in the last chapter and the "Cleansing" that the Elders talk about is exactly that because they cannot control anymore the upcoming threats like Luffy & BB, Robin who can decipher Poneglyps, Kaido and BM teaming up, Shirahoshi, etc. I can even suspect that IM (crazy eye midget) induced Roger his illness and made Zunisha walk the New World seas. Nevertheless, she can somehow manipulate the fate of others if my theory is correct.
4.Raftel is the last remaining island from the Ancient Kingdom that has preserved part of its technology and its people. The poneglyphs are a guide to get there in hopes that at some point the true inheritor of the Will of D. will arrive at the island. They made it so hard to find so that the WG won't know where they are & made it so that their ally Wano would help them build the map with the island location. The remaining people prepare for a "storm" to bring light to the world and reveal the truth and also to apply justice to the ones that now pose as the "new" symbol of justice, the WG.
Roger left all his treasures there to help them rebuild and prepare and his final act towards help bring light into the world was to encourage the true inheritor to go there when the times comes.
Feel free to disapprove.