I guess so. In the manga Pegasus sits next to
Kaiba and says (my translation) "I've read about your project, 'Card
Battle Simulation Box', it would be great if our societies could develop
this product together".
Also, in that scene,
Seto is wearing his old white outfit. It might be a coincidence, but in the story Seto changes his dresses four times:
during his first apperance he wears a school uniform like Yugi's,
during the Death T arc he's wearing that white outfit (that he also wears
when he takes over Kaiba Corp), the
third outfit is the Shirt Tails o' Doom
one, and he wears it after he wakes up from the Yami Yugi induced coma
and until he meets with Isis. His last and most famous dress,
the white sleeveless coat, is the one he wears until the end of the story (the end of Battle City in the manga, after the Cerimonial Duel in the anime).
Don't know if this dress code bears any meaning, but it deserves to be
mentioned. Also, in the Toei anime Seto always wears the white dress,
while in the NAS anime in his first appereances he always has the blue
school uniform, apparently this was done to avoid the identification of
Toei and NAS Kaiba. Another thing worth to be noticed: in the manga and
the NAS anime Seto was a student in Yugi's school, while in the Toei
anime he was a 'transfert student' (in that version he changed schools
just to get or steal cards from students that collected them). In Japan
transfert students usually (don't know if it's an obligation) wear the
uniform of the school they come from, and not the one they're attending
in that moment.