SSFIV Arcade Edition update

The arcade version of SSFIV may have more than just Yun and Yang....the oft requested evil Ryu and "Oni/Shin" Akuma may be hidden jems. When will they arrive via DLC on consoles? At this rate Capcom should just announce "hey we're gonna eventually add all previous characters from SF, SFII,SFII, SFA, SFA2, SFA3"
And here's a request from lil ol me, World Tour Mode was fun, add that mode via DLC.