My ceilings are over 20 feet tall so I want to avoid renting scaffolding to replace the chandelier at the junction box.
Ok like with a swagger lamp. It might be possible. A swagger lamp has a connection inside the globe. Some chandeliers have a wiring space where a junction can be made. All junctions need to be in a box or inside the fixture So it may be possible to do it legally by cutting the line and chain it may end up slightly higher depending on the style but now that I understand what you are asking it could be done with the right new fixture.