Okay now lets think about this for a second. Just because Talim is older doesn't mean her boobs will have grown, so don't get too worried yet! Of course soul caliber has always lacked True Lolis, so losing Talim to her 30s will be tragic. I really loved her in SC2 but she's garbage after that, I guess all the games kinda went downhill after 2. Here's to hoping V is awesome!
Also I mean alot of the charaters can probably defy aging pretty well.
Now that the gameplay video is out, I'm not to worried about anyone aging too much. Even if some do they will probably have sufficient replacements.