I was recommended a great mod by Tarty of SMF Admin. Listing it below. Is it possible to decide a random picked time frame for news letters (during some weeks, you have many hot topics) and handpick which topics to include ? I just saw this mod, and haven't tried it. so I may be missing something. Like to see something similar with ElkArte.
http://custom.simplemachines.org/mods/index.php?mod=3334
Interesting.
There is for sure one thing to do for newsletters: the infamous "link to unsubscribe" (probably better to track that).
Then I have in mind to add something nicer for news and maybe announcements (i.e. merge the two and have news and announcements in a kind of partially hidden board, to develop).
Definitely newsletters seems to have a lot of space for improvements as well.