Well, if I remember correctly, WaMu missed their last divy before BK. While in BK, the divy is suspended.
The question remains, what will happen after the BK? Continue divy? Liquidate at $1000, negotiated lesser amount (especially if TPG/equity committee is formed)? Continue to trade but at what price (Before BK, it was trading at I thought $600, but the poster said as low as $400), a forced converstion in to common shares, etc.
Too many variables at this point, but I think if you have the patience to wait it out, or at least until the reorganization plan is filed, the picture will become more clear.
The potential is there, up to $1000 liquidation. It is just too many variables at this point in the early stage.
It is speculative at this point.
Good luck and cheers.