Well, I think I didn't explain this extension purpose in a good way or the title that I used "wall" is confusing everyone.
This extension will actually add a page where the users can see what their friends posted into the "wall" and I was planning to add a personal "Wall" including cover photos, music, photos, information tabs.
I have the FE/BE (HTML, PHP, JS) code already but I need to complete the installation and Admin settings part. I just added some screenshots to collect ideas but it might take about a month to release the first download package because I'm kind of busy at my job.
Once I release the first version, I'll work to fix bugs asap and them add extra features. The notifications part still pending but almost completed.
I think as you guys mentioned, we should have an option to use either the default profile or a different page, so I´ll try to include it once I finish the Admin part. I'm not a phpBB code expert by I'm learning while I code, and it is expected that there will be some bugs.
I hope I was able to set right expectations, if you have any questions or suggestions, please let me know.
PD: sorry if I don't explain myself well, but I'm not an English native speaker