'One Piece' : Joy Boy is alive, waiting for his plan to succeed - Truth

Joy boy is one of most mysterious person in the entire series of 'one peace' and the central figure  in the  History of ( void century ), who made a promise to the Fish-Man Island to raise Noah with Poseidon's aid, which was broken later for unknown reason. However, Joy Boy apologised for the same in the Ryugu Poneglyph that remains on the Fish-Man Island even a century later. Joy Boy also made a references of his return after 800 years to fulfil his promise.

Joy Boy is alive ?

It is still unknown whether Joy Boy is alive or dead, but it is important to know that Joy Boy is the key to the one piece. However( in point of view ), in void century Something mysterious has happened or some alien species came to earth to do something, then Joy Boy came to know all of this and Maybe started fighting with them to stop them as he lose his life while saving the world Or he still alive trying to stop them or some thing like that. You may be thinking it is silly to say like this, but Because World Government want to erase every single detail of the Void Century and has been hunting down Joy Boy's power for a century it maybe because aliens are behind world government.

If Joy Boy is still alive, I think it's not appropriate to call him joy boy, because he may be 900 years old Joy grandpa or Joy old boy now.

Luffy Gear 5 is related to Joy Boy ?

In Chapter 1044 brought in an interesting turn event, after Zunesha proclaimed that it can hear the "Drums of Liberation" and that Joy Boy has returned. Surprisingly, these drums of liberation matched with Monkey D Luffy's heartbeat and the awakening of his Devil Fruit power. Luffy then began to regain his Consciousness and transforming into his Gear 5 form for the first time While. It was revealed that Luffy's Gomu Gomu no Mi Devil Fruit is actually a Mythical Zoan type namely Hito Hito no Mi: Model Nika. It means that the one who will possess this power will become the embodiment of the warrior of liberation. 

Joy boy is luffy ?

Luffy is not Joy boy, there may have some connections between Luffy and joy boy because of his new awakens power or his devil fruit. Shanks more likely have some connection with joy boy, because unlike Luffy, Shanks is mysterious person and recently he is doing some suspicious things like meeting with the government and exchange something with them.

We Also known that Joy Boy left some treasure in unknown island which was also mentioned by the previous king of the Pirates Gol D Roger, who uncovers the unknown Island on the grand line and names it Laugh Tale. maybe Shanks came to know about Joy boy while travelling with  Gol D Roger.