people have complained a ton in the past asking for "news" (NOT that you are complaining, like you said, your's is a suggestion)
I think personally, they seem to have a very "fluid" business, and from what I have seen in the past 5 years is what was said last week, or planned is not necessarily what is the most important thing this week. Dale has said at the cons he is a funny guy, who will get distracted by a concept that interests him, and try and work it out. it has happened in the past with suggestions in this forum.
imagine if they had put out a mention that NATEDOG was leaving before he actually did? they'd be flooded with questions, applications from people who have no business in the position, and a general mess overall.
I am sure once they got word from NATE the search for a replacement was on, and making sure Waffle was the right guy took some testing, and thought. I'd bet the transition took 60% of their "time" between Nate's leaving and the official announcement of Waffle.
another thing is if they are working on a "bug" of thing they found, you can bet people would go out of their way to try and find said bug, and a way to exploit it.
thats my thoughts on why there is not a ton of announcements on what is being worked on.