I am the 1%.. I'm pretty indifferent when it comes to shippings besides two of them..I honestly don't see any shipping happening whatsoever. But to answer you
which would be first that they would use? Probably something like Rarity and that Blueblood guy or RarityxSpike since it would be real easy to go into.
What could be possible according to known circumstances? unlikely
And what would you like to see that WOULDN'T break such circumstances?
That's classified .