Thanks for the pure speculation..., It's fun to read.Well....we can't read from our future experiences. Geesh!
The issue I have -- all strictly personal expression -- is that if people of a future time see angels with various animals body parts they are likely to "suddenly" believe in the supernatural more so than normal. This doesn't necessarily drive them to Christ, but then Revelation speaks of destruction and not necessarily a mass salvation. If people of a future time see their weapons of destruction causing, well, destruction, they will simply go into hiding -- with the one's who know some form of eschatology suddenly understanding "something" based upon their knowledge.
To date, prophecy has been fulfilled in a "natural" manner -- not with demons and angels showing up. Strange things, certainly, occur when the dead rise, severe sickness are healed, etc. But generally, things occur within some form of natural occurrence. I don't see why this would change until Jesus visibly descends and defeats the armies of the beast. Then it won't matter, that day, if people across the world had put on clean underwear that morning.
BTW, I suspect (my speculations) that the Revelation of Jesus Christ will come with plenty of super natural events. Just like His first coming.