No, not yet. However, I'm not holding out much hope, considering that the change to the chiclet keyboard was also proclaimed as being an "improvement", when in reality it was not. Also, as a Linux user, having to configure the trackpad-based buttons is definitely going to introduce driver headaches, something else that I have been able to avoid so far by sticking to the TrackPoint.
I have used the 4 trackpoints on the market. I own an HP Elitebook and the trackpoints aren't as nice as the ones on the Thinkpads, but are the closest I have found to the Thinkpad pointing sticks. If I have to leave Thinkpad/Lenovo I might go to an Elitebook. HP quality control is terrible, but it might be the only option if the new buttons are really that bad. HP at least has buttons.
They should have kept the mousepad as an option.
Charge extra for it, just don't blatantly remove it. Maybe either Lenovo or someone else entirely different will figure out a way to install the old keyboards on the new computers.
I have a slightly older Thinkpad with the physical buttons. I am trying to decide if I should buy one of the T530 from last year's models or just get the newer version.