Now I am so nervous, we have connecting rooms at POP arriving on the 20th. And my mom is booked there too, our ressies are linked so she will be near us. But we really really really need the connecting rooms, 3 little ones and they said b/c there are more kids than adults they are guaranteed, though I will see when we get there. Just did online check in tonight.
We are scheduled to arrive at POP 1 week from today. We haven't gotten any phone calls, so I called to confirm that we were all set with our reservations. I spoke to a lovely CM who asked if I had already checked in online (which I had). She said if I didn't receive any error messages when I did that, I should be ok. She did say that if there was to be a change of resorts, we would receive a phone call before we arrive. We wouldn't be told that we would have to switch resorts when we were checking in to POP. So basically it seems like it will be a waiting game...so we will countdown our final week until we arrive
and hope we don't get a phone call! 
I mean, sure, if you get upgraded to a Deluxe from a Value, not much to fuss about..
But we booked POP because our family LOVES POP..certainly you can understand why some would be dissapointed if we didn't get to stay at the hotel we booked and paid for?
...by the time she got the phone to me all it caught was an 800 number to return the call....frantically I dialed the number convinced I would lose my upgrade only to find out it was Chase, my Disney Rewards Card inquiring about multiple charges over the weekend.....what a let down! 
) over to the new resort. However, that said, I would use the remainder of the time before your vacations to research the resort you have been moved to and build it up to the kids. I've stayed at all 4 values and while we seem to change our minds about which is our current favorite, a great time can be had at all of them! I've found that the kids will adapt easily to the change if the parents are positive and point out all the great things about that resort.