>>45589212No, just that that route and "city" could be the only Kanto locations in the entire game (and thus anexed to Johto's map) since there's literally zero locations between those places and Johto.
Using Lance as an argument is pretty flimsy though, considering he appears throughout Johto's story and is stated to come from a Johto city. And we don't know how much of that was or wasn't planned before "let's add Kanto" was decided.
>>45589221It makes sense. The final product is weirder: Osaka has no port despite the sea being right there and they decided to add a tiny piece of Shikoku to act as an additional city.