First let me say I love the 4.x blocks! 

Now to make them even better, here's my feedback:

• Make Block titles linkable / clickable
• When selecting forums for the posts and topics feed blocks, it would be nice to be able to choose "this forum and everything below it"
  • One of my forums has very many subforums, and I couldn't just click on the parent category to get eveyrthing under it - instead I had to select all 50+ subforums - was painstaking and I had to do it three times, once each for root, forum, post) :-(
• Would be awesome to be able to define additional "sidebars" in ACP, and then like for the forum "theme override" feature to be able to choose a "sidebar override" for each forum.
• For the topic feed
  • It would be nice to be able to choose between the Avatar and Name of the topic starter, or last replyer, or none.
  • it would also be nice to get an excerpt when you hover over the title
• For the post feed
  • It would be nice to be able to define the max excerpt length

Sincerely,

Shawn

I would love to see a block to present a random picture from the gallery and rotate through X images one at a time.