Here is another idea.
Personally I prefer the Origin period to be done and dusted in one month. Have Origin played in three Wednesday nights in a row. Players will have up to 24 days in camp.
During the four week period, there will be 19 NRL matches scheduled. Each team will play two games. On the weekends leading into Origin, have four games, while after the third and final game, schedule seven matches in the back up round. A schedule of 4,4,4 and 7 over a four week duration.
In 2028 there will be 19 teams. You could have five teams play twice without Origin players, but those same five teams will have the bye after the third Origin game.
Sure, the idea is not perfect, but it still gives some content to the broadcasters. Such as Fox still having 'Super Saturday', while Nine has women's Origin on Thursday.
But more importantly it's a schedule that looks after the well being of the players. We need to reduce the rounds of backing up after Origin.