Possible Arcade Mode for Street Fighter 5 and future Daily Challenges discovered in latest patch
At this point we can only see reference from a menu, but seeing as this mode has been a staple of Street Fighter games since the franchise's start (along with the fact that many fans have expressed a very real want for such a mode in SF5) we wouldn't be surprised to see it come to fruition in the future.
X-Kira also discovered what look like quite a few prepped Daily Challenges:
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