No, the HC12 is still separate.
For HC12, S12, HCS12X, XGATE and HCS12XE, the current version is CW for HC12 V4.6.
The new CW for MCU's is for HC08, S08, RS08 and CF V1 "only".
I have to agree that the name is a bit misleading, well, I guess "just" naming it after the HC08 is not
appripriate either for a version which supports the CF V1, and naming all cores it support explicitely is a bit long.
I did actually find the special edition of the HC12 on the freescale webpage.
Daniel