If you exclude Cleary/Moses... the golden era of established halfbacks like DCE, Reynolds, Townsend, Fogarty, Foran etc is coming to an end in the next few years... these guys are all a year or 2 off retirement.. Hughes still has a few more in him... but this is why clubs need to look at "unproven" potential halfbacks moving forward.. this is why Newcastle were willing to take the risk on someone like Brown.. Dolphins are in on Katoa etc..
There is no pool of 100%-locked-in-Future-NRL-Halves sitting around, you have to pick who you think can grow into the role.. whether thats Atkinson or Wishart or whoever.. and you gotta build em up, or build a team around em.