The proposed changes were discussed at a Dunedin Cricket Association management committee meeting on Tuesday night and are expected to be rubber stamped when the committee meets again on August 23.
Otago and Dunedin Cricket Association manager of operations Tim O'Sullivan said the changes were suggested during the captains' end of season review meeting.
"Basically, they [the clubs] are in favour of it, it is just about working out the logistics,'' O'Sullivan said.
The proposed senior structure will see the competition split into four rounds, three of which will include playoff matches.
"There was a desire to have playoff fixtures for some of the rounds to just provide a different experience of a knockout situation,'' O'Sullivan said.
The other big change will see the senior cricketers playing twenty/20 cricket again during what would be round three. The format was abandoned after the 2012-13 season.
The twenty/20 tournament will be played over three Saturdays from Jan 28 to February 11 - that means the six teams will have to play two games each during the weekend.
The round will include a final and playoff matches for the minor placings, and all of the games will be played at Logan Park.
The season will get under way on October 1 with a six-team 50-over competition which will conclude on November 12.
Round two starts the following Saturday.
It is undecided whether the round will be reduced from 50 to 40 overs.
There is still some uncertainty whether round four will be a 50-over competition or follow a declaration format. The last game of the season is scheduled for March 25.
All four rounds will count towards the Bing Harris trophy.
Otago Boys' High School has expressed a wish to be included in the opening round as it was two seasons ago. It is unclear whether the clubs will agree to include the school.
It would either create a bye or there is the possibility of staging an extra game on a Sunday to accommodate the school's first XI.
There is also talk of switching from the Kookaburra regulation to the Kookaburra turf which has a less pronounced seam and might make batting a little easier on the city's bowler-friendly surfaces.
University-Grange will not be making a reappearance at the senior level this season. The club was excluded from the competition last season when it was unable to commit to a full programme and is still in survival mode, O'Sullivan, who is a University-Grange committee member, said.
