Hopefully they can give us defensive options and a new trigger. And maybe make your poison matter more.
I don't think characters need a new VT, what many of them need is:
- New attacks (either normals or specials)
- More uses for V-Skill
- New CA
- An overhaul on the frame data and damage
- Defensive option using the VT bar (either make V-Reversal more reliable for everyone or make something like a burst from GG/BB that you can use once)
If you look at the DLC characters, many of them already have these tools. Akuma has two CAs, many uses for his v-skill for example. Balrog has an insane amount of options on his attacks due how his specials work.
Looking at Ryu/Chun Li for example, it's clear that they cut options they would have initially and these characters now need them back.
S1 Chun was strong, but not abusive. S2 Chun stagnated completely. Not because of they changed her damage or frame data, but her tools are so limited that her game play did not evolved in S2. She (and many of the original characters) need a new set of tools so that they can develop new game plans and make the overall game more interesting.
For currently weak DLC characters (Alex and Juri), at least regarding Juri, I don't feel she need new tools, she needs adjustments on the tools she already has. It would be a very, very long list explaining everything she needs to become well rounded (there's a 30 minute video on YT explaining almost everything), but the important thing is that she wouldn't need new things to become viable.
I doubt that Capcom doesn't know this and I sure hope they deliver this in S3, but I admit I'm worried.