We really don't know what the new concept will be, but we wouldn't be surprised to see a conceptual version of the next IS sedan or possibly another stylish hybrid performance coupe. We'll just have to wait and see.
Though not quite as intriguing, Lexus also says it will be showing the new LS 600h F Sport in Paris. It'll most likely look exactly like the LS 460 F Sport, except with blue hybrid badges. Lexus says this will be "the model's first appearance in western Europe." The very brief press release can be found below.
World premiere of a new Lexus concept car
First appearance of new Lexus LS 600h F Sport in western Europe
Lexus will host the world premiere of a new concept car at the 2012 Paris motor show on 27 September.
Information and pictures of the new vehicle will be released on the morning of 17 September.
Lexus will also be showing the new LS 600h F Sport at Paris, the model's first appearance in western Europe.
The Lexus press conference will take place on stand 120, hall 4, at 8.45am on 27 September, introduced by Paul Van der Burgh, Director Lexus Europe.