A meeting of the OCA executive committee in Jakarta approved a programme of around 40 sports for the 2022 Asiad in Hangzhou, China, where e-sports had been expected to make its full debut.
Instead the OCA ratified all 33 Olympic sports from Tokyo 2020 - with the possibility of adding up to six disciplines from Paris 2024 - plus one sport nominated by each of the OCA's five regions, and two by the local organising committee.
OCA director general Husain Al Musallam said e-sports, whose competitions are currently organised by a diverse range of entities, needs a single international federation before it can be included as a medal sport.
"E-sports is not finally decided to be officially in the programme," he said on the sidelines of the OCA executive board meeting.
"There needs to be one international federation. Now there are so many international federations for e-sports," Musallam told AFP. "They have to get together to decide one governing body. To be 'official' in the programme and not 'demonstration' it has to be one international sport."
The nature of e-sports could make that difficult given the millions of dollars invested by individual game creators who then need to control how their product is used and marketed in global competition.
Another huge stumbling block will be ensuring gamers comply with anti-doping regulations.
At a first-of-its-kind summit in Lausanne, Switzerland, last month, e-sports leaders met International Olympic Committee (IOC) executives to try to chart a way forward.
Last year IOC chiefs declared that e-sports could now be considered truly "a sport", but that violent or shooting games could never be considered for inclusion in any future Olympics.
"In order to be recognised by the IOC as a sport, the content of e-sports must not infringe on the Olympic values," they said.