The folks over at Wargamers@Nordalia have an interesting review up of the new plastic tread system Battlefront are using for their Flames of War tanks. The review contains a lot of very useful photos.
Personally I’m going to miss the older white metal treads. Sure they had casting issues and required a lot of clean up but at least they really weighed your vehicles down on the game table. A 15mm resin tank with plastic treads is going to weigh almost nothing which may or may not be an issue on the table, depending on how clumsy a gamer you are.
Mind you I still have an entire 1500pt German DAK Armored Company to paint, so it’ll probably be a while before I encountered the new tread system first-hand!
Via TMP.com

From what I understand the plastics are only going to be used for models that would use the same suspension ie Shermans. It’s an economy thing designed to prevent having to redo moulds every so often and it should also help with QC.
I assume, then, we’ll be getting the Easy-8 wheel sets soon – in metal?