@IShadic It's highly unlikely they go back to the original handling model. While you might like it better there were obviously plenty of people who disliked it that they felt they need to change it in the first place. So, all they would be doing by going back to it is swapping around who's happy and who's not.
That said, I do believe that there and more handling updates planned. I forget what thread it was in, but I believe Groguet mentioned that this was the first of several updates coming to the handling model. Then of course the primary point of the 1.3 Handling Feedback thread is to collect player feedback for the next handling update.
In short, I do expect the handling model to continue to change, but it won't be back to the original one.