The problem is not the sides - it is about funding of such franchises and in this regard in the SA and Superugby level the only real funder would have to be Supersport and that would entail funding both Australia, the Pacific Islands and New Zealand as well - as was the case as in the past as well when the Supersport funding provided R1,6 bilion and hte money was distribted s follows:-
SA Rugby - R700 million
New Zealand - R400 million
Australia - R400 million and
Argentina - R100 million.
We have already the Highveld Lions in the URC and that Union is finanially in deep trouble.
So the answer will unfortunately be can such a new tournament be financially viable since we can expect no funding from New Zealand and Australia.- who will in fact have to be subsidised by Supersport instead,
A nice idea - but I doubt it will ever materialize,
I believe a new URC agreement set to start in the 2026-27 series and with due regard I cannot see how such an extension of Superugby will in fact materialize,