You can sell them for $900 per BTC to a legitimate buyer with an established legal process.
https://www.coindesk.com/fortress-will-buy-mt-gox-creditors-claims-for-900-per-bitcoin-owed
https://www.coindesk.com/fortress-will-buy-mt-gox-creditors-claims-for-900-per-bitcoin-owed
Thanks - they are buying it for 725 only... asked them already and this is the amount they offered now. Not really a very good deal.
I think I'll wait another 3 months (till the next plan submission date), unless I get a better offer from... anybody ;-)
Cheers