Is it time for two divisions of the AFL?

With the number of AFL sides approaching 18 and the fact that all sides cant play each other twice, is a good next step to have something along the lines of Premiership League and Championship League as is the case in the EPL?
There would clearly be several ways of going about it, the most obvious seems to add sides from the NT and Tas into the mix then separate the top 10 sides into the Premier League and the bottom 8 sides plus the two new sides into the Championship league and have everyone play each other twice, with a Grand Final series in each division, the top sides of C/L go up, the sides that finish bottom in P/L drop down.
Thoughts?
There would clearly be several ways of going about it, the most obvious seems to add sides from the NT and Tas into the mix then separate the top 10 sides into the Premier League and the bottom 8 sides plus the two new sides into the Championship league and have everyone play each other twice, with a Grand Final series in each division, the top sides of C/L go up, the sides that finish bottom in P/L drop down.
Thoughts?