There had been speculation here and other places about Street Fighter VI making an appearance or at least being involved in some type of announcement at the EVO 2019 next weekend, this was fueled by the news that PlayStation had come out of nowhere to sponsor the event. Ono more or less puts those rumors to rest:
If anything comes out of Sony's involvement, it does not appear it will be Street Fighter VI related, and as far as Street Fighter V, Eventhubs speculates:
If anything comes out of Sony's involvement, it does not appear it will be Street Fighter VI related, and as far as Street Fighter V, Eventhubs speculates:
At this point in time, guesses for what Capcom might be revealing for Street Fighter 5 next month are all over the map. Some people think we'll see one or two new characters at most, while others are expecting a full-blown five to round out Season 4 (since Kage was the first of the season).
There have also been rumors in the past about a potential "Super" Street Fighter 5 update that could add new mechanics, characters, and content. As always, though, rumors should be taken with a grain of salt.