With all the recent announcement of new titles I really really hope Super SFV is a real thing. The game really could use a major shake up to the characters and gameplay. It could also really use a rebranding and a budget re release at $40 with with the S2 characters and a bunch of costumes.
Capcom can still keep their promise of you only ever needing the original SFV. Which I'm sure can still be found for $15 at a Gamestop and be completely compatible with S3, Super SFV, or whatever it's called next year. But even if the sales are gone, they could really do more to help clean up the game's image.
While those niche anime titles and a EX Alpha re-skin won't have a big impact on SFV I do think a SSFV will obviously help the game's reception even further. All you mentioned has been rumoured for quite a while now so it's just a matter of time however it won't be at EVO, possibly at the end of the season at Capcom Cup.