Apart from the most immediately noticeable, visual facelift, the redesign has improved the overall project managing ux a lot, and the un-publish/delete functions were needed additions as well. As a matter of fact just a few days ago, on clock day, I was wondering where can I delete projects! I was thinking that there has to be one, but then decided I can search for it later. Well, now, less than one week later, it's there! :)
By the way, about the opposite situation, when updating a published game, it seemed to me that the
"Make Live?This will automatically publish your changes!"
option doesn't work properly. On clock day, I tried to use that a few times, but it didn't affect the publication. It didn't seem like a cache related thing either, as on each of the times the changes were immediately there after I used the "Publish changes" button.