There is a strong rumour that Universe of Energy at Epcot will be replaced with a Shanghai Tron style coaster.
Source: http://wdwnt.com/blog/2017/05/first-permits-filed-replacement-universe-energy-epcot/The above hydrologic evaluation plans show a huge rectangular area behind Wonders of Life and directly on top of the filled canal area that could be the new show building.
Source: https://twitter.com/cjg983/status/866352778477805574The wife hopped on Photoshop and threw Shanghai Tron over Universe of Energy at Epcot. Just a rough idea.