Hopefully someday she can leave Mako and Korra in the same room without worrying about them making out or something. I'd hate her to be 79 and still worried </3

If Asami accidentally (or deliberately for some reason) does give Lin and Tenzin an edge by making them younger, Xano and Xana will be pissed as all hell and they would surely not let her try to back out which is why I foresee the last two elements not being a choice for Asami anymore. They would also have her father to use against her but adding Mako would make it impossible for Asami to resist what they want to turn her into it. Poor Mako, never thought I'd be thinking that haha.