SUMMARY

Given that they recently attained the rank of Yonko, the Straw Hat Pirates in One Piece are among the most formidable pirate groups in the entire series.

Every member of the Straw Hat Pirate crew has aspirations of their own that they hope to achieve while journeying.
One Piece creator Eiichiro Oda previously described and illustrated what might happen to the Straw Hat Pirates if they grew old and failed to fulfill their aspirations.

The Straw Hat Pirates in One Piece is one of the strongest Pirate crews in the series as they recently have achieved the status of Yonko. Not only have they defeated the former Yonko Kaido and his crew, but they have also managed to reach Egghead arc and are currently fighting against the Navy, Admiral Kizaru, and one of the Fiver Elders, Saturn.
One Piece – Straw Hat Pirates
Each member of the Straw Hat Pirate crew is assigned a role that they fulfill, thus helping their Captain Monkey D. Luffy achieve his dream of becoming the King of the Pirates.

However, they also have their personal dreams that they wish to fulfill along their journey to the final island Laughtale. Their individual dreams motivate them to complete their journey.

However, what would happen if Luffy and the other Straw Hat Pirates failed to achieve their dreams? Eiichiro Oda, the creator of One Piece once explained and drew what would happen to the Straw Hat Pirates when they got old and failed to achieve their dreams and the dream of their Captain.

The Dreams of The Straw Hat Pirates in One Piece

When Luffy started his journey, he was alone and wished to assemble a crew that would help him become the King of the Pirates. Along the way, he met the characters who will ultimately become one of the best crews in One Piece. And they all had their own dreams that they wanted to fulfill.

Zoro had the dream to become the strongest Swordsman in the world. Nami wanted to create a map of the entire world. Usopp wanted to become a great warrior of the sea. Sanji wanted to find the All Blue. Chopper wanted to become a doctor who could cure every disease. Robin wanted to unveil the secrets of the Void Century.

Franky wanted to build a ship that could reach Laughtale. Brook wanted to reunite with Laboon and finally, Jinbe wanted to end the discrimination against the Fish-Men.
The Straw Hat Pirates in One Piece
Although no one in the series has yet achieved their dream, they are moving steadily towards it and sooner than later they hopefully will be able to achieve it, as the series has already entered the final saga.

What Happens If Straw Hat Pirates Are Unable To Achieve Their Dreams

In the One Piece SBS section, where fans may ask Eiichiro Oda questions about the series and he responds, he illustrated what the Straw Hats would have looked like in their latter years. However, in two distinct timelines, one in which they achieved their aspirations and one in which they failed them. These renditions were shared by @Gol-D-Air on YouTube.

The Straw Hat Pirates in One Piece
At 40 years old, Luffy resembles Shanks, but by 60 years old, he resembles Garp. On the other hand, he appears to be an odd old man in the tragic rendition. Zoro didn’t change much other than a few wrinkles and push-down hair, which made him resemble Rayleigh. However, in the other rendition, he appears to be a very elderly droopy guy without hair. On the other hand, Sanji resembles his mentor Zeff, but in the parallel reality in which he is unsuccessful in achieving his wish, he resembles his father Judge.

Nothing changed about Nami and Robin. Though they still appear very young, in the event of a mishap, Nami will resemble Big Mom and Robin will resemble Kureha. Usopp has Yasopp characteristics, however, in the alternate version, he resembles Crocus. Franky, on the other hand, appears acceptable in every timeframe. In the parallel reality, Brook and Jinbe have not yet been sketched by Oda, and Chopper resembles a Bigfoot.