My guess is that they have gotten their act together. They haven't mentioned anything about online, but like you said, SSFIV 3D will launch with online. If anything, Nintendo is planning somthing huge with the 3DS.
After watching, and studying the video closely, I saw
-A GAMERTAG- LIKE SYSTEM (Pause the video at 1:09)
-AN ACHIEVEMENTS LIKE SYSTEM (Pause the video at 1:18)
Overall, I think it will be good