Toyota's Yaris WRC will make its first test on asphalt next month, but no firm commitment about a World Rally Championship entry is expected before the end of the year.
Since the Cologne-built Yaris began testing in March, speculation has been rife that the Japanese firm is on the verge of a world rally return.
The car has since tested in France and Sardinia - and moves to Italian asphalt next month - but the official green light for a competition programme is still awaited.
A Toyota source said: "There's nothing from Japan, no news and that's not likely to change before the end of the season."
On the subject of the asphalt test, a Toyota Motorsport spokesman said: "This is just the next step for the car.
"We are trying to make sure we're as well prepared as possible [for a potential 2017 WRC entry].
"This means gathering as much set-up detail as possible and looking at the behaviour of the car on all surfaces, and next month it's asphalt."
Toyota's GT86 CS-R3 - the world's first rear-wheel drive R3 car - is expected to make its first public appearance at next month's Rally Germany.