Yo, ho ho. I think it would be cool to have a /warp ship. A pirate ship. (Very swashbuckling!) I've always loved the airplane warp and how detailed it was. A pirate ship would be awesome. There could be villagers selling fishing rods and/or fish themselves. Maybe enchanted books for fishing rods. It would be a cute place to explore, or to make a trade. Just don't get seasick!
That could be kind of cool. There could also be a cargo hold at the bottom of the ship where there could be rooms like /warp skybase to trade at or look out the windows at the void. Also a crow's nest where there is a villager that sells something, or is just there for decoration. I support this.