I think in the long term 1000 sat is not impossible. It's a long shot but not impossible. Realistically, in the days/weeks following the launch, I think we should be very happy if we're able to maintain the value above 50 sat. That's taking into account dumping which will automatically ensue as soon as the price rises.
But let's wait and see, we'll only have an idea of the number of weak hands in our midst once trading is live.