Have not read the whole thread so forgive me if I repeat some info.
For starters, no, Atlanta will not get another team in the next decade. Beyond that is hard to tell. Arthur Blank is the only hope for Atlanta NHL fans, but as far as I know, he has not said anything about an NHL team.
Atlanta also will not get an AHL team. An AHL team could play at either State Farm Arena (With renovations due to the removal of the ice plant) or the Infinite Energy Center, but the league is in no position to put a team in Atlanta. None of the 4 closest NHL teams (NSH, CAR, TB, and FLA) own their AHL affiliates, so even If Atlanta is open as a hockey market, which it is not, none of those teams would be able to move their affiliate here as you see with other teams like NJ and CGY. Also, the only team within a 10 hour bus ride is Charlotte, which is currently for sale and may be moving soon. Very, very unlikely the AHL puts a team in Atlanta in the next ten years.
Now we get to the Gladiators. Back when the Thrashers were their sole affiliate, much like the Wolves in the AHL, the (then Gwinnett) Gladiators were loaded with prospects that were never going to the show, with consistent playoff appearances and series wins. After the Thrashers left, the Gladiators hoped and marketed toward the Atlanta audience, hoping for an influx of fans. They never came. You can check Hockeydb attendances for the team and they have been consistently declining since the departure of the Thrashers. Since then, they tried the somewhat successful "Atlanta's one and only" marketing campaign, the rebranding from Gwinnett Gladiators to Atlanta Gladiators in 2015, and a color rebrand in 2019, to little success. In Atlanta, the sports market is vastly oversaturated, and the best way to distinguish yourself is to win. Now, if you know anything about the recent history of the Gladiators, you know that they do not do that. with one playoff berth and no playoff wins since 2013, the team has gotten lost in the vast sports landscape of Atlanta. Far from the winning ways of the Thrasher era, you could almost say theyre carrying the torch for Atlanta hockey now. That's not to say they will be going anywhere anytime soon. The league has made that clear, but the Gladiators are not helping to establish Atlanta as a hockey town.