Yes, like I said I think they are waiting to see how Rebel Moon fares first, then they'll probably make moves to secure character rights for a possible Snyderverse continuation. But it's all ifs and buts for now.
Well, Snyder said what I assumed could potentially happen. He could go ahead with the rest of his DC Snyderverse if Netflix bought it and owned the rights to the DC characters in order for things to get into motion. And it seems Zack is perfectly up for that, and the fact that he said what I also assumed means he's been thinking about continuing it in some capacity.
Of course, whether that happens or not is basically up to Netflix. And, like I said, I think Netflix will be waiting on how successful Rebel Moon is first before doing anything in regards to DC.