In addition to the confirmed ones, there are a few that might be released according to their developers.
Freedom Fox from Parallel 42 is also a possibility by the end of the year (not sure yet, not confirmed).
Boeing 247 from Wing42 is a possibility (again not confirmed but the devs hope to release it before the end of the year)
An-2 from Asobo (developed by ATsimulations) should release in December unless Asobo cannot secure the license on time.