This 2016 answer to Does Bennu pose a risk to Earth? And how can OSIRIS-REx's mission save us? says:
Does Bennu pose a risk to Earth?: recent calculations produced a cumulative probability of 1 in 1410 (or 0.071%) of impact with Earth in the period 2169 to 2199.
and the first comment below it says:
Those sound like terrible odds.
to which I agree.
Precision tracking of OSIRIS REx itself (in orbit around Bennu) along with all the data collected so far by its scanning of the surface would have already improved understanding of the evolution of its trajectory over the next 200 years. Have new or updated estimates of the likelihood of collision with Earth been made?