The new live-stream didn't just announce the TC-01, there was another chassis for us Tamiya racers in the form of the TA07-RR. This looks to have every hop-up available along with a few new option parts.
Here are the details I gleamed from video
TRF420 Arms
TRF420 SSBB low profile shocks
New Servo mount
New Upper deck design (Carbon 2mm)
Aluminium upper chassis core to hold front and rear decks.
TRF Aluminium steering set (TRF420, adjustable arm length)
TRF Aluminium Adjustable suspension mounts
Stabiliser set included (New TRF420 part coming soon)
Front double cardan
Rear lightweight universals
Front spool
Rear oil filled gear diff
Aluminium Pulleys on motor mount
SSBB shocks, Low carbon towers
Adjustable suspension blocks, Roll Barss
TRF420 arms, Front Double Cardans and Spool
New Top deck design that connects to the servo mount and the new centre aluminium part