Nope. I even went back and listened to it again to make sure I didn't miss it somewhere... but no, no specific timetable unless I'm just selectively deaf. It's a possibility, mind you (maybe I selectively just don't like timetables?), but I'm about 98% sure there was no mention of any.
I know that, based off of some recent constructions (LCA in Detroit, TMA in Vegas, Climate Pledge in Seattle), it takes about two years to build/renovate, so I imagine that'd be one of the things to look at if we're putting together a future timeline of sorts.
A key thing that was mentioned is, while this whole thing got started because of the desire to bring the NHL back to Atlanta, the presence of the league is only required for the public subsidy. If Krause decides to proceed with building the development anyway, it's all coming out of his and his investors pockets. This particular podcast made no mention of who else might be involved. Also stated was, if Potential Atlanta NHL Franchise v3.0 were to leave the building (ie a new arena is constructed) or otherwise relocate, the outstanding balance on the public debt must be repaid.
They also went on to talk about economic impact (the county commissioned two different studies, but no details were divulged), configurations of residential units, and a desire to attract people to Forsyth for things like shopping and entertainment, as opposed to them traveling outside the county (gotta bring in those tax dollars).