Map showing the Size of CERN’s proposed ‘Very Large Hadron Collider’ compared to the current LHC
The VLHC is currently in the feasibility study stage, which will likely last around five years.
Here are the other images mentioned in the title:
EDIT (to provide more info): Also in feasibility study is the Compact Linear Collider, an 80km long, straight (rather than circular), collider. The VLHC is also referred to as the Future Circular Collider. When each study is completed, CERN will select which project to attempt to fund. The reason this process starts only 5 years into the LHC’s lifecycle is that, although the LHC has at least 20 more years in operation ahead of her, it will easily take that long to build the next generation collider.
EDIT 2: If you want to see how this would look in relation to your own home town/city, go here and enter 15.9 kilometers for the radius.