..I'd imagine you have less than a 30% (2/7) chance of getting either room #, perhaps much less if requests get jumbled up due to room ready. The reason I say that is you are hoping that either room is being vacated the day you arrive.
I think a more general request such as "high, near MK view" or High with Poly view" would have a greater chance of being granted. Expecting a specific room seems to be a good way of setting up your vacation for disapointment.