There was actually a whole thread about this room (and it's neighbor, 4010 - the other half of the lockoff). We were in this room in late May and assumed we had been upgraded from Standard to Preferred due to construction. However, we had one last night where we moved from a 2 bedroom standard to a studio preferred. In order to not have to move, DH and I asked the front desk if we could simply move into the other half of our unit (4008), since we had apparently been upgraded to preferred anyway. The desk person told us we had NOT been upgraded and were in a standard view room. They had to call and arrange it through MS to have us switch and forfeit the three points difference, then they could move us.
If the room had been designated preferred in the computer and at MS, that would not have been necessary. So, bottom line is, at least when we were there, room 4008 was designated standard view. I don't know if it's possible for them to temporarily change the designation in the computer or what, but we wouldn't have had to jump through the hoops to move if it was preferred.