Ways to Challenge other players

I don’t know if this has been discussed but I would like there to be a way to challenge players in other areas than just rivalry races. I like how in Drive Club you can make challenges for almost anything. Like it be cool that once I do a speedtrap I can put a challenge up for other club members to beat it. Or Drift scores, or skill chains. I like when I get a notification when I have a rival going on just wish you can do it in other categories. Has PG mentioned anything about something like this?