Initially my understanding was that the lawyer will work for the percentage of the the recovered funds. I was assuming that this would give him enough of motivation to fight for our money. Now it seems that it's not the case. I really did not go deeper into the conditions but now I am not so sure that he has enough confidence that he can win this case. Therefore asking for upfront payment.
I myself have more than 30 btc in this venue so it will be heart breaking to go for USD refund but at this time I would say better something than nothing.
You can always get US dollars. The question I have is whether one can get a BTC refund. What HashFast said on this site may not be in the sales agreement. If the sales agreement does not "guarantee you will not lose you BTC" or that refunds will be in BTC (both claims made by HashFast on this site), then there may not be a case. I have no idea what the law would say in the case. The sales agreement would normally be the only agreement, but we know other claims were made.
It would be interesting to see how the other cases go. If somebody wins, then it would make it easier to demand BTC.
I have stopped following the main thread. Does anybody have any news on other cases. Any success stories of BTC refunds?