I agree that it would be nice to have a “solid” roadmap to see what is planned for the future. It’s not easy to put up actual goals and implement them in a FOSS project but that is something that the core team might be able to do. In the past there were only blog posts about the general ideas for the upcoming releases (i think 4.1 was supposed to be mainly stability improvements and bugfixes after the big 4.0 release).