We just saw that Tapbots just posted that Tweetbot 4 has been submitted for review to the AppStore. So we could see a Tweetbot 4 very soon. This will most likely be a new app and not a update to the existing Tweetbot 3. All we know about it is that Tweetbot 4 has Landscape support, iPad version, redesigned profile view, and more. This info was taken from their site. 

So let’s hope Apple pushes this one through asap. But most likely will be a few days. We will for sure be buying it and will let you all know if it’s a buy or not buy in a review.