So obviously you don't know the answer either, but you thought you would just type something.
18000 posts by you in 16 years, the long winter nights must just fly by.
the answer is NO, you will not see the old cars on a WRC event.
World RX lurches from one crisis to the next.
KMS may have committed based on Red Bull being there, but hopefully they can find new sponsors with the Championship getting free live coverage on YT.
Evans https://youtu.be/ouRtqczlVbA?si=bhgNQ0ZtsXHSTs1S
WRC Testing