At http://www.atari.de/newsarchive.php?newsID=194&lastID= Atari announces a 7800 retro console. Unfortunately the do not tell if it is based on emulation or a real remake of the console. Therefore its also unknown if one can insert original cartridges.
The German text translated (as good as I can):
Right on time for the 20th birthday of the calssic Atari console "Atari Flash back" gives the unique possibility for a travel into the founding time of video games. Classics like "Asteroids", "Breakout" or "Centiped" return to the home screen. "Atari Flashback" is a console in the style of the legendary Atari 7800 which comes with two classic joysticks.
The following titles are pre-installed:
# Air Sea Battle
# Canyon Bomber
# Crystal Castles
# Desert Falcon
# Food Fight
# Haunted House
# Planet Smashers
# Sky Diver
# Yar’s Revenge
As a special bonus for fans the undisclosed title "Saboteur" comes with the console. The unique Atari Flashback console is therefore not only a must für each nostalgic of video games. A younger audience also receives the possibility for a travel into the first days of virtual entertainment and to experience the fascination of the pioneering time.