If Sora is able to take Ven out of his heart,do you think both Ven and Vanitas will come out for some reason???

Yes, because Ven's heart is fragile due to MX's tampering.

I dont see how this fits into introductions, so I'm moving to BBS.

I don't think Vanitas will come back due to MX extracting ALL of the darkness from Ven's heart.

I'm pretty he won't, when Ven defeated Vanitas, Vanitas returned to Ven's heart, if he should be able to return, the darkness must be extracted ones again.

Ven's heart........ is in a coma....

just for confirmation for myself, the heart that ven took into himself at the awakening at the beginning was sora's right?

Vanitas is dead and gone and returned to Ven, Vanitas should coe back unless someone takes the darkness from Vein's heart again.