Strictly speaking, and of the hotels you bid on do not have to accommodate more than 2 adults per room. So you could be booked into a room with 1 king bed. I think the 4* hotels in the WDW area are very accommodating, and can't see that they wouldn't allow you to call and request 2 doubles rather than 1 king bed.
You'd run into a definite problem in some NY hotels, as many of them only have 1 bed in the room - sometimes 1 SINGLE bed! (guess they think everyone who stays in NYC is there on business?)
Basically, it's a crap shoot, but your chances of changing to 2 doubles are probably pretty good.
<img width="200" SRC="http://www.wdwinfo.com/sites/awilliams/dalcooks.jpg"[/img]
Gail a/k/a CookieGVB
"All you need is MUGS..."
MY KINGDOM FOR A REFILLABLE S/D MUG!