After some testing, Google has finally announced that they will be launching changes to their search suggestions. The key changes include:

(1) Search Ads in Search Suggestions:

(2) Improved “navigational query” support:

(3) Search Suggestions even on search results pages:

(4) No estimated count numbers, as you can see from the screen shots above. Here is a screen shot of the old way:

(5) Search suggestions are now personalized based on your search history and other factors:

(6) Google bolds the query words in the search suggestions drop down.

I don’t see this feature live yet, but it should be soon.

Forum discussion at WebmasterWorld.