Plunket Shield

A design contest was held in 2011 to determine the design of the Big Bash League trophy. The competition was restricted to Australian designers, with the final design, chosen by the public from a field of three, revealed on 13 December 2011.

It had been proposed that the tournament would undergo expansion into more regional areas not supported by international cricket. The expansion was originally planned to be implemented in 2012. The proposed teams included: Newcastle, Canberra, Geelong, and Gold Coast. A New Zealand-based team was also mentioned as a possibility which would be based at Auckland or Christchurch, but this is unlikely to happen. The expansion proposal was suspended, mainly because the proposed cities lacked the proper cricket hosting facilities.

The current BBL champions are the Brisbane Heat winning against the Sydney Sixers at the Sydney Cricket Ground.

In 2015, former Black Caps captain and Melbourne Stars coach Stephen Fleming suggested the expansion of the tournament to include New Zealand teams and become a trans-Tasman competition. He said an expansion into New Zealand would be widely supported by locals. His views were also supported by Brisbane Heat coach and former Black Caps captain Daniel Vettori. Melbourne Renegades chief executive Stuart Coventry also stated that he wants Cricket Australia to grant each club a fifth home fixture next season. Coventry said the BBL was ready to expand from 8 to 10 games, and adding matches would further establish the franchises.

In 2016, Anthony Everard, head of the BBL, flagged the league's intentions to approach expansion through a soft launch. He stated the short to medium term goal was to schedule BBL games involving existing franchises in regional markets before potentially adding new teams after the 2017–18 season when the broadcast deal expired. He also indicated the regional markets of Canberra, Geelong, Launceston, Gold Coast, and Alice Springs will likely host games during the soft launch period. On 27 January 2017, Everard announced an extra eight matches would be added to the 2017–18 season and implored each existing franchise to look at new markets when considering where the extra games would be played, although the lengthened season was not implemented until 2018–19.

In 2018, it was reported that the Gold Coast Suns were interested in securing a Big Bash League franchise if the competition was expanded.

Former women's Test captain and Head of Brisbane's Centre of Excellence, Belinda Clark, revealed on 19 January 2014 that planning for a women's BBL was in its early stages but could become a reality very soon. She stated that the proposal was being considered due to the huge rise in television ratings during the 2013–14 season, and the rise in women's cricket popularity.

On 19 February 2015, Cricket Australia announced that a Women's Big Bash League (WBBL) would commence in the 2015–16 season, with teams aligned to the men's competition. It was announced that the teams would share the names and colours of the existing men's BBL teams, meaning that there would be two teams from Sydney and Melbourne and one team from Adelaide, Brisbane, Hobart, and Perth.

The inaugural Women's Big Bash League was won by the Sydney Thunder against the Sydney Sixers by 3 wickets. The current champion from the 2022–23 Women's Big Bash League season is Adelaide Strikers who won their maiden WBBL title by defeating Sydney Thunder by 10 runs.^[]

In December 2015, Cricket Australia revealed that they are looking into the possibility of hosting a Christmas Day BBL match in the coming years, possibly after the next season. If the proposal is passed, it would have been a first in the history of Australian sport since no professional matches had played in Australia on Christmas Day at that time. "It is something we have just recently started discussing, the possibilities of that. We're talking about playing a Christmas Eve match, we already play Boxing Day," CA's Executive GM (Operations) Mike McKenna said. This has not yet occurred, but in September 2018, it was reported that Cricket Australia had struck a deal with the Players Association to play BBL matches on Christmas Day.