It’s unlikely we will see a super-eruption in our lifetimes, but there has been increased seismic activity in the park in recent years, starting with a large swarm in January 2009.
That suggests that we may well see some very scary event like a hydrothermal explosion or even a smaller eruption in our lifetimes.
There’s a lot of scary stuff that can happen at Yellowstone short of a super-eruption. I follow this fairly closely since it will be my rear end if it goes off, and the September swarm definitely got my attention.
I worked a project in Brigham City, UT a few years ago, and, like you, kept track of those swarms. If Yellowstone goes Big Time, you'll be the first to know (and go), but the rest of us (as far as the "go" part) won't be too many days/weeks/months behind.