Will the patch be in xdelta format and will it be hosted on romhacking.net?
Indeed. I have the same question.
Yes, that's the plan for hosting the patch. We will provide full instructions on how to patch a ROM with an XDelta-based patch.
Don't worry, folks, we *do* want you to be able to play the patched ROM. We will make sure you know how to do it, but posting now is premature and will just require me to post it several more times before we're done. So. Don't worry, we'll make sure you can play it.