Very nice idea but..
I have warm-up plugin (restart after 45 seconds) on my server and this auto switch comes not on 8 rounds but 6-7... Maybe author can add auto restart on map start to this plugin and then counting rounds...
Additionaly, it should be a restart round/pause when the team change comes, it is too fast and this is a little shock for players when they are transfered...
Other idea...
Round counter on every round start
For examle center hudder text: