This diesel oil we use has been proven by analysis to actually increase efficacy well beyond 10k. Filters are different, I'd want a new one at 10k, but with improved materials, who knows. They will still collect small amounts of particulate.
I have read that some people Change the filter every 10,000 miles, even if they push oil changes to 20,000 miles.
On the flip side, I have heard that sometimes as filters get dirtier they actually filter better. So unless the filter is becoming so restrictive that oil pressure is affected. I would imagine that It's okay to run the oil filter longer.
Of course I say it's okay to maybe to run 20,000 miles on an oil filter but that assumes you do enough miles fast enough that the oil filter won't start getting old and falling apart..... I'm not sure how long and oil filter can last physically before maybe it just starts deteriorating from old age.
Personally, I think if my oil change interval can safely be extended to 20,000 miles I would probably leave the filter in Until the oil change Since I do that fairly quickly ...