Was Hiratsuka originally supposed to be a part of the Tokaido Shinkansen?

Was watching the Shinkansen construction documentary in >>2024166 with some weeb friends, and we noticed on pic related at https://www.youtube.com/watch?v=iYjFOYLAtoE&t=2487s showing an ATC panel with Hiratsuka after Shin Yokohama.

Our guess was that Hiratsuka was an early candidate and this panel was made before it was axed, either because it was too close to Odawara or was replaced by Odawara entirely.