as-salāmu 'alaikum wa rahmatullaahi wa barakaatuh Abaa al-'Abbās,
jazaakAllaahu khayraa for your efforts.
I remember that at the beginning of the course you used to post some research questions on the forums - on three levels: beginners, intermediate, advanced - for those interested to answer on the forums.
I figure you may be quite busy but is it possible for you to bring this feature back? Insha'Allaah, they'll be beneficial esp for those who have the time to look up the answers.
I think the quiz preparation and collecting the audios, transcripts, and other related materials that our brothers and sisters post here as they come out might be enough to keep the beginning students busy.
So I'll try to re-commit myself to extension activities and questions for intermediate and advanced students, in shaa' Allaah.