Bestätigt als real 444 Adventure at the Ghost Island
It's Nami, Usopp, and Chopper that'd land on the island. (Nami was romping around and landed (by mistake?))
Others are attacked by some transparent beast-like thing. Someone called "Hildon" appears in front of Nami and others, and s/he tells SHs that s/he'll bring them to Doctor Hogback-sama's mansion. Chopper: "Eh... Hogback!!?"
The end.
Mini-series: Enel's angry "My Vearth; unconditional anger"
There are five of soldier dock system, and they'll use #2 to go to the island. #2 is mini-Merry. Only four of them can ride in it. (Soldier Dock System is small boat that comes out of Sunny.) Four of them land on the island! Franky and Luffy will land on the island!
Not much progress.
I guess getting to know how SDS works is good part.
Anmerkungen: Allgemeine Tendenz - die Mehrheit (mich eingenommen) meint der zweite Spoiler stimmt. Eine nette kleine Randinfo bzgl. Hogback, hatte da was im Hinterkopf und nach kurzem googlen hatte ich das hier gefunden (Hogback)^^