Well, the time skip had never really much sense, the closest I can think of would be a speculation about Shadowlands time, which goes slower there, so once we return, we are a few years into the future.
But Murozond, dude, it's few level of magnitude above all of themit's literally a corrupted Bronze Dragon, who's the lord of time. If that idea is not utilized, I can't think of anyhting that comes even close to that. Even WoD was just some random bullshit, initially with some hourglass stuff.