I won't post pictures of the new train sets due to the fact that the LEGO group has not yet officially released information about them. However, that hasn't stopped others sites from doing so, most notably, Brickopedia.
My curiosity has been thoroughly piqued by the new sets and speculation from leaked box art seems to indicate that they have it all: motor, rechargeable battery box, IR receiver, and a remote control.
But wait.... The box art clearly states 'Batteries not included'. What? This can only mean that the battery box included in the set is made to look like the rechargeable battery box from LEGO. This is good news for those that may have complained about the steep price of the rechargeable version. I hope they decide to sell it separately.