An expansion to Disney Springs would not require cutting through Bonnet Creek. WDW (or Reedy Creek) still owns enough land, between Buena Vista Drive and the Bonnet Creek development to facilitate that. In fact, according to an Imagineer that posts on USENET, when Buena Vista Dr was overhauled and widened recently, the bridge over the access canal that goes through OKW was raised for the possibility of boat transport between DS and CBR. *** "for the possiblity", meaning no immediate plans to do anything there, just future planning. On the other hand, my opinion is that they still would not extend the Gondola system to DS for the same reason that there are no busses from DS to the parks, to make it hard for anyone to cheat the parking cost by parking (free) at DS and using Disney Transport to get (directly) to the parks. OF COURSE this is all just my opinion so no need to correct me if you think I'm wrong.
PS. The very same Imagineer once said that the "current" Gondola system would never go further west than it does now. She said that the western area of WDW might get it's own, small, transportation system, like the Gondolas, but that the plan is (was) to connect the eastern area resorts and parks / the western area resorts and parks / the northern area resorts and parks, by a larger, more efficient system of some sort.
This all seems to comport with varied rumored plans in the past including a dedicated lane system for some type of mass transit vehicle (whether rail, wheeled, automated, etc...).
But also, those rumored plans kept changing and shifting.