@Salah WG your take on Davy Jones as a descendant of Blackbeard/Xebec? Will he be relevant later on or did Blackbeard inherit his will?
No one comes for the Throne unless They have a Claim for it,
But Davy isn't One of 20 Founders, then where does He fit?
People need to understand that for those Kings to stand out from all other World Rulers, it means They had a Unique Quality,
But nothing says that those who were fit to create WG were only 20,
In Drum Island Arc, Wapol's 20 Doctors are like Mini-Version of those OG Kings, but were They only Doctors? No, there were Two More,
Hiriluk can be described as The Most Inspirational Doctor & Drum Kingdom's Version of Joy Boy, but who was Best Doctor on that Island? Kureha
This means, Joy Boy might have been Main Inspirational Figure of Ancient Kingdom, but it was his Friend/Rival (Someone He would drink with similar to Xebec/Harald & Noland/Calgara & Roger/WB & Shanks/Mihawk ... etc) who was seen as Best in that Kingdom, and entire World,
So if those 20 Kings were fit & worthy of founding WG without anyone complaining about it, what does that make of this Joy Boy Friend who is Superior than them? It means He is more Fit to Rule based on their Criteria & He doesn't have to share his Authority with them, He would directly sit on Empty Throne,
Xebec & Blackbeard simply believe that it's Davy Family who were supposed to Inherit The World after Void Century,
However, Family alone isn't enough to Claim Throne, because Davy never went to Mary Geoise, instead it was his Power that made him the only Candidate to Rule WG, this is why I believe that Davy Jones is still Alive, Xebec & BB are just preparing for his Arrival,
Think of Davy Jones as Kuro, and Blackbeard is his Jango, while Imu is Kaya.