It's going pretty fast, but it'll slow down a lot as it crawls back out of the Sun's gravity well. It'll only be 100 AU away in 2034 and 1000 AU away in 2196. Which means that human made spacecraft absolutely will visit it in either the 21st or 22nd centuries. We could actually pull off a flyby mission within the next two decades or so if we dedicated enough resources to it. And as our launch technology improves over time, that only gets easier and cheaper.