Weird.
Toyota would be most likely based on location, but why would they need to try either him or the car? Car is "overtested" in Finland and for drivers they have both Rovanpera and Katsuta "on the way". Maybe Joukhi would try to swap him for Latvala but still unlikely.

Citroen could be interested for next year, but I'd think if they go for 3rd car they would want some reliable points scorer to complement "unstable" Lappi. Think they have enough car feedback from Ogier who also drove Fiesta for 2 years.

Hyundai now have feedback from many drivers in the car, most recent with Breen so why waste test days on this. Could be to test him for a seat next year, even though I'd expect them to prefer Evans for stable points.