I think this is probably the most interesting topic here about how the new park and the current resort will connect. There's so many dots to be connected with so many possibilities.
From what I can make out, VB will have it's own bus hub at the front door and this will accommodate staying in and out the resort, so that's pretty taken care of.
I think
@testtrack321 idea to move the bus hub to the WnW plot is probably the most realistic but the guests need transported from there. A monorail seems like the most practical way but it's expensive and complex. A station would be needed on the current property but the current bus hub would be the perfect fit.
This whole topic feels like an always shifting target. One problem seems fixed with a solution but creates another and so on and so on.