I'm wondering about how he's doing and if there's a chance of his returning to the rally circuit?

Nothing new. From his website,

Additional information will be given once Richard has completed the course of treatment referred to above(a course of radiotherapy ).

TaviaRS,

Thanks! I've bookmarked the site. I'm hoping he'll make a comeback like Lance Armstrong!

I'm sure he has the will power to make a full recovery and return to rallying.

I wish him all the best.