Sega sent out the following

Whoaaa, Nelly! It’s time to run and jump our way to the next lineup of timeless classics making their way to the SEGA Genesis Mini with some of the biggest characters in video game history.

SEGA Genesis Mini, Starring:
The GROOVY! worm himself, Earthworm Jim!
Sonic’s BFF, Tails, in his debut performance, in Sonic the Hedgehog 2!
The one and only, Mickey Mouse, in two classically-animated games, Castle of Illusion Starring Mickey Mouse and World of Illusion Starring Mickey Mouse and Donald Duck, each with their own beloved casts of characters.
The Next 10
  1. Earthworm Jim
  2. Sonic the Hedgehog 2
  3. Castle of Illusion Starring Mickey Mouse
  4. World of Illusion Starring Mickey Mouse and Donald Duck
  5. Contra: Hard Corps
  6. Streets of Rage 2
  7. Thunder Force III
  8. Super Fantasy Zone
  9. Shinobi III: Return of the Ninja Master
  10. Landstalker
SEGA Genesis Mini FAQ:
Q. When does it launch?
A. September 19, 2019
Q. How many games will be included?
A. 40 games.
Q. Which games will be included?
A. The first 20 titles included with the system, with the rest to be announced intermittently over the coming months, are:
  1. Sonic the Hedgehog
  2. Ecco the Dolphin
  3. Castlevania: Bloodlines
  4. Space Harrier 2
  5. Shining Force
  6. Dr. Robotnik’s Mean Bean Machine
  7. ToeJam & Earl
  8. Comix Zone
  9. Altered Beast
  10. Gunstar Heroes
  11. Earthworm Jim
  12. Sonic the Hedgehog 2
  13. Castle of Illusion Starring Mickey Mouse
  14. World of Illusion Starring Mickey Mouse and Donald Duck
  15. Contra: Hard Corps
  16. Thunder Force III
  17. Super Fantasy Zone
  18. Shinobi III: Return of the Ninja Master
  19. Streets of Rage 2
  20. Landstalker
Q. Which version of the Genesis is the Mini based on?
A. It’s based on the original Model 1 Genesis which launched in Oct. 1988 in Japan, Aug. 1989 in North America, and Nov. 1990 everywhere else.
Q. How big is it in comparison to the original console?
A. It’s approximately 55% of the original Model 1 size.
Q. What do you get in the box?
A. The Genesis Mini comes complete with 40 games, Two replica three-button USB Genesis controllers, One USB to Micro-B power cable, One power adapter (North America only), and One HDMI cable.
Q. Who handled the ports?
A. M2 is handling the porting process. They’ve previously worked on SEGA AGES and SEGA 3D Classics Collection, with a fantastic reputation based on the quality of their emulation projects and their faithfully recreated ports.
Q. Can I use original Genesis controllers with the Mini?
A. No, only the provided USB controllers.
Q. How much will it cost at launch?
A. $79.99 US/£69.99/€79.99/AUD$139.95
Q. Where can I find more information?
Will you be getting this?