Back in their rally days Proton were a force of the Malaysian state, like a lot of manufacturers, and the R5 was a British effort. This isn't a topic worth discussing it just generates rumours like...
First and last time they tried... not good https://www.ewrc-results.com/profile/129279-chewon-lim/
Lappi and Sordo are great drivers, but none of them can be the fastest on tarmac. So why not going for Paddon.

Whoever they chose that wouldn't be a surprise. Hyundai couldn't even complete when having Neuville, Tanak and Fourmaux in the 3rd car.
Hyundai WRT