*blows dust off ten year abandoned account*
I'm pretty certain the melitia box will be back. It was only fairly recently removed from sale. It's one of those kits that GW would be mad not to re-release.
If they do update it, it won't be 32mm. the new Brettonia models fit very nicely with their older models, and thankfully steer clear of the over-detailed AoS style, but take advantage of sculpting/technology improvements.
There are better kits for them to update. As others have said, knights!