So lets think about this. DLC is finished right? BUT they push the release date back a week. Now why would they do that? Also why do you think Capcom gets anything out of "fking with people"? They are a business. They want money. They can sell Vergil's Downfall FOR MONEY. Pushing back the deadline only hurts them (may deter people from getting it when hype is starting to wear off). Now think about this. Generating enemies on each floor of the bloody palace can probably easily be modified (I almost have a degree [im a senior in college] in Biomedical Engineering and Computer Science and signed my full-time offer with Microsoft as a developer in Windows so I know what im talking about) so that the new enemies in Vergil's Downfall can be used instead. They can do something else with boss battles (I don't exactly know what, but i mean Vergil can technically fight the original bosses). So this is definitely doable, and it makes sense that this could be what they are doing right now.
So I am trying to STAY POSITIVE about this because my theory makes sense. If i am wrong, i will be bummed out, but either way lets just hope for the best! We really don't need posts like this man. I know you are frustrated but just wait it out. We are all frustrated.