It seems they will follow his real legend of assembling an armada and blockading carolina etc, then after his supposed death, he uses the oppurtunity to semi retire and gain a larger share of all the treasure he assembled.
Also he seems to be able to use voodoo, or more likely, his daughter has learned it and is helping him or teaching it to him. This is where the mention of zombies come from, his entire crew is under a voodoo spell. Its how the ships come to life to help him and how he puts ships in a bottle, also how Angelica has a Jack Sparrow voodoo doll to make him lead Blackbeard to the Fountain. And finally he has stopped building an armada and now collects ships hes bested, including the pearl, which is likely why Barbossa is seeking him for revenge for losing his leg, and likely to get the pearl back.
Lot of lego and toy stuff backs all that with ships in bottles, and the voodoo doll etc.
