While I'd like a faster sun beam so that it can be used in corner setups, I don't think that's a necessary thing. The calls for buffs also seem to be a side effect of having variations. When people see one variation for their character is good, they want all the variations to be similarly useful, and that's just not the case in most situations.
For the most part, I'm of the opinion we should wait and see, though this hasn't stopped me from having pipe dreams on occasion. There's really only one thing I can say with certainty. Mace Parry needs to be nerfed. There's no reason for the damage buff to stack the way it does, and I feel that, because of the massive damage this can create, it holds back any discussion of how Blood/Sun play. There will always be someone that points to Kotal saying "but...121% combos" as if those are a thing outside of combo videos. Hell, I'm not even sure if the parry is working as intended or the stacking was just an oversight.