There is some speculatory discrepancy as to what happens with the undeclared dividends. It's possible, though unlikely that Ps could get face and any unpaid dividends as part of a settlement.
Ps could be paid in full (with or without undeclared dividends) or they could be swapped for a similar preferred series or could be converted over to a newly created series with the same prospectus details.
Really... it's all guesswork at this point. Personally, I want the cash, thought there are many others that dream of having the dividends reinstated.
"Do I get that right, in case of a stock swap the holders of P´s would get $1,000 (+ dividends?) in cash?"