It appears the VX8575 will be based on the BL42 and not on the BL40. Here is the address to the new VZW Chocolate.

us.lge.com/chocolate
The BL40 was approved by the
FCC too. Maybe we'll end up seeing it.
You can search the
FCC site for both.
Company code: BEJ
Product Code: BL40 or VX8575 if you wanna see that.