Yes! For any search or segment, we'll provide a Segment Health Card.
The Segment Health Card will appear under your search results and will correspond to your current search query. In the left hand column, you'll see the average for the entire segment + time range. Additionally, you'll see the daily (or weekly / monthly, depending on how long your search time range is) averages plotted over time. Hover over the time plots to see a comparison of the same stat in the previous period (the dotted line).
In the example below, there are on average 11 total events in the sessions that match the search criteria. The average length of all matching sessions is 1 hour, 37 minutes and 07 seconds. The average active time of all matching sessions is 21 seconds. When hovering the events time plot, we can see that on February 6 the average session length was 2 minutes and 13 seconds, but back on November 14, the average session length was 6 hours, 38 minutes, and 58 seconds.