AEW is going to be as big of a player in the pro wrestling world as they can be, but they only have so much money. The company does have amazing resources, but they might have already reached their limit or come close to it in regards to how many stars they can sign.
The Wrestling Observer Newsletter noted that there are still some top stars out there who AEW might be interested in. However, they might have already reached their cap on talent or at least be rapidly reaching it.
The big thing is that AEW was looking at signing a finite number of people and have already hit or come close to that number.
We will have to wait and see who AEW signs next. Angelico was confirmed yesterday as signing with the new company and there are likely more to come later on.
If Jon Moxley is available you know they would sign him, but apart from a big exception, AEW might be finished signing a big amount of names for a bit.