Pro 14 chief executive Martin Anayi admitted that the addition of two South African teams to the league ahead of the new season will only make it better and exciting.
Australia international Christian Lealiifano is eyeing a comeback into the game through a short stint with Pro 14 club Ulster following his recovery from cancer.
The PRO 12 league is set to expand to 14 teams from next season with South Africa regional teams Cheetahs and Kings confirmed to be part of the tournament.