As Jim said the FWWC series is being developed by a team working in their spare time and hence the time it takes to release a new title is inevitably much longer than other series where it is the developers job to produce new titles on a more regular basis.
So it is just not possible to be certain when the third title of the series will finished but as Ed says hopefully at the latest it will be out early in 2020 but don't hold me to that!!
Some new features and improvements have been added and the first two titles will be updated as well to ensure there is consistency across the whole series.
As I did with the first two titles I will post a article about the new features and improvements in the articles area just to bring players quickly up to date on what they can expect from the third instalment of the excellent series.
However long it takes I am sure you will be happy with the finished product!