So with no other plug-ins available, it seems Ford has extended the life of the Fusion Energi - and most other Fusion models. Ford has said it is exiting the sedan business, but the Fusion gets 2 more years:
https://www.caranddriver.com/news/a27791904/ford-fusion-lineup-dies-2021/
https://www.caranddriver.com/news/a27791904/ford-fusion-lineup-dies-2021/