GAA president John Horan says any new championship structure will not be allowed to impact on club fixtures.
Calls for a Tier 2 competition have grown recently and the GAA has made moves to examine the possibilities.
Yesterday, the association announced the membership and terms of reference for its new fixtures calendar review task force.
The committee's brief is to compile a report with recommendations ready for November, which will drive a discussion ahead of the potential for rule changes to be voted on at Congress 2020.
Speaking to RTÉ Sport, Horan said: "We are looking at two options at the moment but the key to it all is the impact of bringing in a Tier 2 championship would be that it has no major effect on the actual playing of club games within the association.
"Club games are key to it all and they have been under pressure.
"So if we are going to make any change in regard to a Tier 2 championship most definitely whatever structure we bring in will have to take into account the fact that club games are not going to be impacted.
"The national fixture analysis committee are having a forum in Croke Park on Saturday morning so I’d be hoping that all the members of the committee would be available to attend that and then the following Thursday night will be the first meeting of this new group to get the work under way
"It will be late October, early November. It is very complex.
"I think we all said if there was a silver bullet in existence this would have been solved a long time ago."