Pre-Release 6 is now available and we intend for it to be the last pre-release for Minecraft 1.14.4.
I expect it to be out by the weekend and spigot and paper should be out soon aswell. At the last check most of the main plugins we used are ready to go. So will do a few tests for 1.14.4 and depend on things we should go live on 1.14.4 soon after.
I know this has been a long road and alot of waiting has been done. 1.14 has been rushed for release causing for several updates to make the game more stable to play.