These few days, if you search for #allnew4sq, you can see a number of teasers from Foursquare regarding something new that might be coming next week.
Based on the tweets and websites reporting the #allnew4sq, it seems like Foursquare is focusing on recommendation and basing on the data collected over the years to do the talking.
Here is another picture of the #allnew4sq.
Finally, this one looks like recommendation based on the location.
Hope to hear something from Foursquare early next week. It is about time that Foursquare makes full use of the data from users.