Well, interestingly enough, BSH sells an identical plancha/teppanyaki under its Thermador brand "for use with electric and induction cooktops." (A link is here.) Undoubtedly made for BSH by Demeyere. Of course, the Demeyere branded one is currently much less expensive on the website of corporate parent ZwillingUSA.

So, did the BSH engineers think about the plancha when laying out the "flex zone" on their new Bosch Benchmark slide-in range? Hard to say.

I just looked for a convenient way to contact Bosch to ask about this but I couldn't find anybody to call and I don't do twitter or facebook. Maybe somebody who does can check with Bosch.

Guestimating from the photo of the Benchmark's stovetop (on the product page of your link), it looks to me like:

(a) one could fit the plancha over the stovetop's big 11" burner by turning it sideways and rely on the plancha's excellent heat conductivity for even heating. However, that would block access to the stovetop's other burners.

(b) if the plancha were pushed as far back as possible on the left side "FlexZone" area, the plancha's raised front lip on the edge might just barely clear the left side of the new stove's extended touchpad. FWIW, the actual base of the plancha is 19" long, and would not be resting on the touchpad. However, it seems to me that the plancha's one-inch wide raised lip would extend out so close to the touchpad that one would have to be very careful to avoid bumping and burning fingers when using that end of the now wider touchpad.