So the 4x20 is no more......

[Spudland_Dave]

I wonder if Deere will change the model numbers on the 3005, 4005, 4105? I know that they are gonna have a new updated 2305 but i dont know what the model number will be.

Nope, they said in the beginning they will NOT be changing any model numbers on anything. A Machine will only get the "new numbering" when the machine is due for a refresh/etc... So those machines will stay as is until they get dropped, or updated.