UVA admissions stated a few years ago that they planned to continue to evaluate OOS legacy applications on a similar standard as IS applications. They don’t speak on the subject often, but that’s the latest official word on the subject. There does not appear to be any legacy benefit to IS applicants, which makes sense because no one would want it to become a self-reinforcing cycle of legatees having an advantage over other Virginians.
They are required by state law to put together a class that is at least 2/3 Virginians, no more than 1/3 OOS. (They actually skirt that line pretty closely, and got just on the wrong side of it in 2011-2013. Whoops.)
The OOS admission rate has been trending into the lower 20s, while the OOS application numbers have been exploding. 10 years ago they had 9,213 completed OOS applications competing for 972 seats, and 6,444 completed IS applications competing for 2140 seats. Last year it was up to 21,963 OOS completed applications for 1,217 seats, and 9,058 completed IS applications for 2503 seats. http://avillage.web.virginia.edu/iaas/instreports/studat/hist/admission/first_by_residency.htm