Here is the time frame for new model release as best I can tell. Still no word on the dl
My guess, Scion is testing the market to see what kind of response they get . It is not the first time they have done this if you remember the ccx concept before the tc came out . I am sure they have a time frame already in place for the next 4-5 years

Limited Edition Scion
xB Solar Yellow 05
tC Absolutely Red 05
xA Blue Metallic 05

New Models

New Avalon 05
New Highlander Hybrid Jun 05
New Yaris Sep 05
Nev Rav4 Nov 05
New FJ Cruiser Jan 06 \\ this will be awsome //
New Camry Feb 06
New Camry Hybrid Mar 06
New FTX 07
New Corolla 07
New Matrix 07
New Highlander 07

i thought they were remodelling the corolla for 06 and including a corolla coupe to replace toyotas beloved celica.......
whats goin on with that?

New FJ Cruiser Jan 06 \\ this will be awsome //
ooo yea it will be

In regards to the New Yaris in Sep 2005, will it be the new Vitz/Yaris?

http://toyota.jp/vitz/index.html
http://toyota.jp/vitz/grade/grade/gradeval/image/gr_va05.jpg