Well, after reading the latest GM press release about the Orion production facility (posted a few minutes ago), my money is on GM dropping the name.
They've stopped referring by name to the Chevy that will be built there. They're just calling it "Chevrolet's new small car" - but tellingly, they do name the Buick that will be built alongside it:
source: http://media.chevrolet.com/content/m...007_lake_orionOrion will be the home to Chevrolet’s new small car and Buick’s future compact sedan – the all-new Verano
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No further details on production or timing for the Verano and Chevrolet’s new small car are available at this time.