Meanwhile, Lions and Dolphins are crowned the first-class and one-day champions after the competitions were suspended due to the coronavirus pandemic
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The under-threat Mzansi Super League has survived being completely culled from next season's South African domestic season but the format could still be revised.
Failure to secure a title sponsor and broadcast rights for either of the two editions had led to uncertainty over its status.
Cricket South Africa have been forced to bear the financial burden, however, have opted to keep the only domestic competition which reached a conclusion in 2019-20.
The 32-match tournament, which runs across November and December and attracts a handful of overseas stars, may yet be downsized but remains part of the calendar.
The first-class and 50-over competitions remain but with a reduced fixture list. Currently, the six franchises play each other home and away, with two semi-finals and a final to follow.
The coronavirus led to the domestic tournaments being curtailed - two rounds of the Four-Day Domestic Series and the knock-out stage of the Momentum One-Day Cup - with any resumption unforeseeable.
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Imperial Lions and Hollywoodbets Dolphins have been handed the titles of the two competitions having been top prior to the pandemic.
Interim director of cricket Graeme Smith suggested that both leaders be awarded the honours, with the motion supported by the CSA's Board of Directors.
"This is undoubtedly the fairest way to decide the various winners,” the ex-South Africa captain said.
“In the provincial competitions where some teams have played more games than others, we have taken the average number of points per game to decide on final log positions.
“In the Momentum One-Day Cup it was also important that we put extra weight on the performances of the teams that earned home ground advantage for the knock-out stage.”