Former Wales flanker Martyn Williams says it would be a mistake to split an expanded Pro12 into two conferences.
Wales' 2005 Grand Slam-winning coach Mike Ruddock backs Gavin Henson to be a success after joining Newport Gwent Dragons.
Pro12 derbies would be protected if the league splits into two conferences after the arrival of Cheetahs and Southern Kings.
Gavin Henson believes he can add to his 33 Wales caps by impressing for Dragons next season.
Audio & Video
Footage shows former Dragons back-rower Ed Jackson walking for the first time since breaking his neck.
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