Bristol City Council is considering a new location for its much-delayed 'Bristol Arena' project.
Now the Council is to decide between resuming work at the original site or moving the project to the Brabazon Air Hangar in Filton.
Mayor Marvin Rees said “Not enough work was done on options in the first place" and now both schemes will be fully considered before a final decision is made.
The Brabazon hangar is currently owned by a Malaysian conglomerate.
Mr Rees added that the Council must "fully evaluate this new proposal and the associated infrastructure costs".
"We have already gone a long way down the road with the Temple Quarter project and the council needs to be confident that it can make a like-for-like comparison when informing final proposals and taking a decision."
“I am 100% committed to delivering an arena for Bristol and I want to be sure we are fully informed on the options for achieving this at a cost the city can afford."
According to Mr Rees, the Council's cabinet will be "updated" on the project in April.