Sega's Kenji Matsubara said they plan to re-issue the Genesis.
Here's a bad google translation of the original Japanese Yahoo news:
On September 7, Sega Geek said it is considering re-entry into the home game machine market. President Kenji Matsubara said he is planning to sell a reprint version of "MegaDrive" which was fighting against Nintendo's domestic game machines about 30 years ago against the interview of Sankei Shimbun. Sega withdrew from the game machine market in 2001, but the demand for revival from Sega fans is increasing, and in response to the popularity of Nintendo's recently released reprint game machine, the relevance of re-entry
And to that I say Yeeeeeeessssssssssssssss. I never had a Genesis growing up, and ever since the NES/SNES Classic, I wanted Sega to do their own version (and not those cheap 3rd party versions that are available).
I wouldn't mind a SMS Classic either, with Game Gear titles since they were both almost the same sometimes.