I 100% understand this doubt. iDice are abysmally bad when it comes to communication. I hope for you sake that your invested funds will be profitable in the long run.
All I can say at this point is see what happens close to 1,000eth and worst comes to worst it could be the moment to sell, whether the payout happens or not. They key is to see if any work has been done on the mobile application: thus far there is no news of that.