Will God ever wipe mankind again?

god flood the whole world cause there was evil in the world so god told noah to build a ark for his wife and his sons and his sons wife but god said he will never flood the worldc ever again but the earth is still bad will god ever wipe out earth again without a flood. why didnt god do it now since the earth is bad is it because there is no one like noah who has faith and holy and worships the lord (i dont mean allah muslim) is that why god didnt wipe out earth yet cause god didnt find the right person to do the job. plz no mean answers