Just posted on the GD FB page.
" A quick update on the Xbox port, since so many are asking about it:
Yes, it is still coming and nearing completion.
We’re in the semi-final phase of going through certification testing with an outside company. This process involves them testing and submitting bugs or non-compliance issues, then us fixing them and putting out new builds for testing.
Once this is complete, we will submit GD for certification with Microsoft.
After that, it is just a matter of Microsoft finding a release slot for GD in their lineup. Once that occurs, we’ll have a firm release date we can share for you.
It will likely be at least a few more months but hopefully before the end of the year.
It has been a somewhat slow process because we are, after all, a fairly small team and there is only 1 programmer doing the port. For those worried about PC updates slowing the port, that shouldn’t be a concern as they’re independent pipelines with different people working on them."