Siliconera noticed a Twitter exchange between James Booth, an assistant producer at Sega's mobile-oriented Hardlight Studio, and Yosuke Okunari, a producer at Sega CS3. When Booth congratulated Okunari on the 3D Classics series, Okunari's reply thanked him and said "we develop the 2nd series for Japan. If this overseas release succeeds, it may release these in the world." Okunari did not hint at which games might be included in a future round of 3D Classics.
So, there you go. If you're gunning for more 3D Classics in the US beyond those that have already been announced, the series' performance across our shores will need to satisfy Sega, first. The question is, will you love the 3D effect and features added to Streets of Rage, Shinobi and Sonic the Hedgehog enough to buy them again?