My 2 cents as a fellow Corellian writer. If he was exiled, simply come up with a reason that he was gone before the split IC(even if the character wasn't around OOC'ly at the time) and was later exiled, or simply have him be exiled before the event giving him a reason to have been off planet, and possibly unaware of the goings on. Once he learned of the fate of his once home, take a visit there and work the story from there.
Just my 2 cents on the matter, trying to find a way to turn the negative happenstance into a positive one.