@Obikawa, are you aware how much of the available resources will go into writing these reports? Furthermore, this is something developers really hate (including me): Instead of progressing with the piles of work ahead, writing reports about the few things one achieved (within a week it will never be much).
Are you aware that most of the work you want to be informed of is happening in the open? You can simply take a look!
Hence I rather wish that Jolla performs even more work directly in the open, instead of staging stuff in their internal source code repositories.
Ultimately, the SCM changelogs @dcaliste gathers already cover most of what you ask for and Jolla provides their biweekly community news: These do provide the regular progress information you are asking for.