I can confirm that there will be close coupling for the coaching stock and between the loco and the TSOE.
In all fairness to the manufacturers, I think that your wish for corridors (or even vestibule rubbing plates on locos for that matter) to actually be touching when the vehicles are coupled is a little wishful thinking for a model train to actually work. Model trains have to contend with much sharper curves, the corridors are rigid not super flexible, and the stock weighs a fraction that of a real coach. Cams will allow the coupler to pull out on tight curves but on a sweeping curve they wouldn't pull out at all and if one coach is rigidly up against the next they will derail. Add to that the slop in a tension lock coupler or even a Kadee and you can't account for it. Its better to have tolerance built in than the stock being intolerant of staying on the track.
That said we are looking at reliable close coupling that allows for good scale speed propelling as well and pulling with good stock gaps so watch this space.
We will also be looking at retracted buffers when coupled to coaching stock.