ASB Classic tournament director Karl Budge is being particularly cautious as to when developments will take place.
"We don't know what's happening in that space at the moment. We're 100 per cent committed to the project, we've got some fine tuning to do with it," he told Radio Sport.
The upgrades will see the Robinson and Yock stands demolished in a move which would increase capacity on centre court to more than 3500, and Budge says that the magnitude of the changes required more planning.
"With all the movement that's going on with the [WTA] Tour at the moment, the onus goes on us to understand what that looks like for the future and what we need to be building.
"For the sake of doing a little bit more homework before we rip down stands and commit to what's our biggest strategic project we've done for some time, we need to make sure we've dotted i's and crossed t's there."
As a result, there is currently no timeframe on the upgrades, but Budge insists it will still go ahead.
"We need to know exactly what we need to do and in what order it needs to be done. Once we have that, then we're in a position to commit to some projects.
"It will happen, but we've just got a bit of homework to do."
