Doesnt this "hells breaks loose" all assume that banks will simply flood the market?
The Pittsburg 15/530 mix is an example. Sure you have a backlog of properties, but at at the end of the day land is still an asset and with enough capital banks can look to the long run and bleed of a few at a time.
If they flood the market not only will basic supply/demand the will kill their own selling prices ... but other "on the edge" properties that havent quite gone under will be pushed over the brink. A fire sale may clear some of thier current stock at reduced prices, but the market value drop will also put more REOs back into the inventory as more owners go underwater with sinking prices and walk away.
Barring a going out of business bank sale (and even then they would not flip to individual investors but sell a portfolio to another institution that is unlikely to fire sale as well) I think you will see these REOs carefully dribbled out over the next 5 years with never too many released at any time to avoid instability. Anytime the market starts to turn weak they can pull the REOs back out of list and firm things up with a supply shortage temporarily.
Its like the 8000 OC properties in shadow inventory mentiond on this board. I doubt that banks suddenly forgot they had them and didnt list them. They are off the market for a reason. Somewhere in some dark basement is a dude with a spreadsheet and abbacus deciding how many and when to place stuff in to the market.
There will be some deals for those with good cash and solid financials that are quick, but I dont think "Mr Normally priced out of market" is going to find a sudden windfall of cheap property.