There is a post in a different thread mentioning this.
@BreadInu had an idea to put the Java hub under the current hub. That works here. For its appearance, they could make it the same as it currently is, or they could do what Mojang did in the minigame lobby.
This is a picture of part of the minigame lobby. Above this area is the main lobby. To get here, one has to complete a series of actions. Then, they can fall down into this place.
What does this have to do with the suggestion? Well, compare the picture to this:
They’re the same location.
My point is, if the Java hub were to be in Hive Bedrock, it should be under the map, accessible by a tunnel, and in a ruined state.
Sorry, that was a really long reply. I don’t usually make replies this long for the purpose of improving others’ suggestions.