The ADL man,
The reason Boeing haven't listed these 6 aircraft is because they are not a new order. Impulse (pre-QF) had options on another 11 aircraft. Impulse/Qantas have a choice on where they can get these 6 aircraft from. Pembroke (big leasing company) already supplies a few B717's to Impulse and they have a total of 21 on order, so Impulse if they like may lease another 6 from them. Another option is take 6 aircraft from the TWA/AA order. TWA ordered 50, but since AA purchased TWA it appears they will only take 20-30 aircraft. Qantas B738 were planned for AA so this maybe where the 6 B717's will come from. The next 6 aircraft will be in a 2 class seating config, ie will have business class, so you can start guessing what routes they will operate. I have also heard where the new base(s) will be, the choice(s) may surprise a few. There are no plans to operate the B717 in the west.
Once the xmas/new year season is over there will be an announcement. From what I've been told B1900 pilots have already be asked to bid for slots on the new aircraft, with the first batch heading over to the USA in late Jan 2002.