Cricket Ireland have confirmed that neither the Irish Senior or National Cup competitions will be held in 2020.
Defending champions Pembroke and Railway Union won't therefore have the chance to defend their crowns.
However, in better news the All-Ireland T20 Cup competition has been given the green light by the governing body.
CIYMS beat Malahide in the inaugural final at Stormont last August.
It's planned that the four winners from the unions will play-off in an end of season showpiece decider, with Dublin the likely venue.
"While disappointing for fans and players alike, this will allow clubs and Unions to focus primarily on local competitions instead," said Elaine Nolan, Participation Director of Cricket Ireland.
“The good news is that we have agreed with Cricket Committee and Provincial Unions that we hope to proceed with the All-Ireland T20 Cup competition that will determine the best T20 club side in Ireland.
"This would provide a fitting end to what has truly been a challenging season for all of us.”
Ireland still hope to salvage something from the interprovincial season, while a final decision has yet to be announced on the aborted Euroslam.
ICC is also expected to make a final decision soon on the fate of the T20 World Cup in Australia, scheduled for October.