V5 and V4 Competition Use

Can you still use the V5 and the V4 equipment in competition for 2018-2019 Turning Point ?

https://vexforum.com/t/can-you-still-compete-with-vex-v4/47958/1

To summarize the thread linked:

You may still use V4 (aka the Cortex), and its associated electronics and motors for this season; you just can’t use a mix of both the V4 and V5 on the same robot.