if there were a God?

[billy]

i know we have many non believers but let's for an instance put our beliefs/non-beliefs aside should they be something other than a belief in a Christian god.
Works off the hypothetical premise that everyone here believes in god.
what would happen should he return to earth again. a sort of second coming; under similar circumstances.

would people believe it were him/her, would he be able to create a similar ground swell of followers as he did back then., or would Christians denounce him/her as a charlatan?