Still imagining a world where Kitana can special cancel 21434 and B231343. You'd have a MUCH more interesting Kitana as well as an actual use for two of her most useless strings. Just imagine cool combos like..
Fan-fare: 21434 ex air fan B14 lift 12 gut slice KB
Fan-fare (corner): 21434 float JK B14 lift JK ex air fan 12 gut slice KB
Highborn: 21434 ex air fan B14 gut slice KB
Highborn (corner): 21434 ex air fan JK d1 razors 12 gut slice KB
Fearless: 21434 ex air fan (hop) edenian twist KB B14 gut slice KB
Fearless (corner): 21434 ex air fan B14 lift (hop) edenian twist KB B14 gut slice KB
Even KB Christmas situations aside, it'd add an entirely new BnB route that would result in her best corner carry and be the single-most consistent way for all 3 variations to cash out on the two main KBs (Slice and Twist). Just the thought of seeing 21434 cancel into float / air fan / square wave makes me so happy.
Toss in B231343 (which is normally -7) suddenly becoming a mindgame-filled way to get in 3% chip damage in without guaranteeing your turn loss in Fan-fare (float / square wave / air fan) and Fearless (edenian twist / air fan).
Imagine the weird blockstring pressure in Fan-fare with a float after B231343 (which leaves her VERY close to the ground) for an immediate mixup of aerial normal out of float, ex air fan (-3 on block, +24 on hit) out of float, empty float into immediate hop OH, empty float into grab, empty float into block strings, empty float into low poke, or letting the full string ride with no cancel since it's a perfect-timing punish anyway.
If she's in Fearless, she still has the ex air fan and edenian twist threats to keep you guessing with an INSANELY fast OH in twist (it's a 5f startup when done super close to the ground) that will keep you from ever trying to neutral duck the ex fan (assuming it wouldn't jail).
I'll quit musing I guess. Not to be a debbie downer, but I really don't see this happening considering NRS hasn't decided to do so over a year into the game's life. These would be some pretty big changes to her options and playstyle which NRS doesn't seem to care about expanding on. Gotta stick to those two damaging strings for combos, mashing razors, and mashing fans with nothing else to bother doing I guess.