The gox trustee isn't allowed to dump any more coins unless the court orders him to. The last dump was because the court decided he needed more money to pay interest on all the fiat owed.
The trustee says he's almost sure civil rehabilitation will be approved, which means all those owed Bitcoins get paid back in Bitcoins. Although there might be another sale of a relatively small number of coins the vast majority are likely to get returned to gox's customers.
Yep, seems that way. If it goes to CR, we'll probably be looking at a year or more of lockup while all the claims are reassessed.
If we get CR, a lot of involuntary holders will likely dump at least a portion of their coins.