The AJC has an update on the status of HB 89:

Sonny Perdue apparently intends to sign H.B. 89, the bill that would let permit holders carry concealed weapons on public transportation, in restaurants that serve alcohol and in state parks.
[...]
“Actually, we were going line by line over lunch, on that legislation. There are certainly some ambiguities regarding employer and employee rights in the bill, that I’m a little concerned about,” the governor said.

But likewise, he declared himself “moved by the fact” that this law would only apply to license holders who have submitted themselves to fingerprinting and criminal background checks.

Then he said this:

“I do think it will be litigated and tested very soon after signing, because of the craftsmanship of some of the semantics in the language that creates some latitude and interpretation.”

[UPDATE] Insider Advantage has the transcript, it's more ambiguous:

“I do think it will be litigated and tested very soon after signing because of the craftsmanship of some of the semantics of the language that creates certainly some latitude in interpretation.”

So, he was asked, does that reference to it being 'litigated' mean he will sign it?

“The courts will sort it out regardless if I sign it. If I sign it, they will sort it out. That’s the way our system works.”