| Create Mr. Pitt |
RAW: The text of the metamagic does not say that it includes additional effects; just a specific amount of damage. So a Burning Dazing Fireball would provide a fourth round of dazing, because it is the same elemental damage being done on a second turn. However, the Burning feat itself doesn't state that it applies any of the additional conditions of the initial spell just additional damage of that type.
So metamagic would occur again, but not additional disabilities built into the original spell.