Short answer: No.
There has been some work done for other Digic 4 cameras: 50D, 5D2. But it is still way behind options available for Digic 5. And because of 7D's dual processor design it is likely that porting anything to 7D will not take place anytime soon. Or maybe ever.
Get some ultra wide lens and try to work around those limits. Or send your cam into retirement.