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I think that could be possible.. it would help if we could see the lower half though T_T. The emblem appears to have rays emitting from its sides on the new screens, whereas this is merely a heart insignia. Still, it would be good if there's a connection. Perhaps Terra's belt represents an untainted heart, whereas the enemies have darkness coming out of the heart.
Well, both Terra and Ven have that emblem, so it has to mean something.