Thread:The King of the Monsters/@comment-28615543-20160620171052/@comment-25285745-20160622163713

The ending scene showing Godzilla's disembodied heart beating on the sea floor gives the impression that Godzilla will always return even if humanity forgets about him. If this Godzilla could regenerate from a heart, presumably over a very long period of time, it's feasible that he could have regenerated from whatever the Oxygen Destroyer left behind over a period of fifty years. The size difference thing isn't really that important, considering in the Kiryu Saga Kiryu is 60 meters tall despite being constructed around the first Godzilla's skeleton. Sure, the metallic exoskeleton might add a little height, but not 10 meters. If the Godzilla in GMK did regenerate from the Oxygen Destroyer, he could have increased in size.

GMK doesn't really make any distinction between the incarnations of Godzilla. The characters all say Godzilla has "returned," in contrast to some of the other Millennium films which say a second Godzilla has appeared. The sources I see only say that "Godzilla has returned for the first time in 50 years" in GMK. The same thing kind of happened with The Return of Godzilla, and it took later films to establish that it was a second Godzilla, but GMK seems to have the intention of featuring the first Godzilla resurrected.