Self-indulgent question

There's discussion of an Animorphs mini bang on Tumblr. If I were to write something (that worked as a standalone, though possibly in connection with one of my other series), would people be interested in:

-Aftran stays in Cassie after book 29 and they deal with the later events
-Elfangor stays on Earth and forms a human resistance, not knowing that the "Andalite bandits" include Tobias, Ax, and the others
-something else?

(I'm not going to do a crossover.)

No poll because I'm cheap.