Webcke would be a good addition. Pearce should be the next to go. Girdler would be good as well.
Geyer won't be commentating I don't think. He said he now has his weekends free to watch his kids play sport.
I would run a big red line through:
Tallis
Pearce
Ikin
Sailor
you can save some ink, Ikin only worked for Channel 9 until his famous exit a few years ago and as Taipan ( and others ) noted, Pearce won't be there due to his position on IC