Yep, but you have to supply the audio files, and it takes just a little bit of work. You'd have to create an event for every number of remaining players. For example, let's say you want to announce the number of players left when you get down to 10 or fewer players. On the Events tab:
- create a new event (from scratch)
- give it a Description of something like "Players left: 10"
- Trigger: a player busts out
- Conditions: playersLeft = 10
- add an Action that plays a sound, and choose an audio file that announces 10 players left
Repeat this for 9, 8, 7, 6, 5, 4, 3, 2, and 1. The audio file for 1 would presumably announce the winner, and not how many players are left.
If you have another bust-out event (for example you have an audio file you want to play for all other bust-outs), make sure to move that bust-out event BELOW the 10 you just created. That way it doesn't get chosen for play when there are 10 or fewer players left.