Yes, it would be interesting, but not original storytelling. One story about how Kanan received his cybernetic eyes could be because the Wookies the Ghost crew rescued (Spark of Rebellion) hear about Kanan's blindness and help him get the medical treatment to get the cybernetic eyes as a way of thanking him and the…

Unfortunately, that is not an original story idea. Losing sight, gaining a power, and then regaining sight only to find the power and sight have combined would be an original story idea.

I hope that Kanan gets his sight back. The reason is the “blind warrior” story line a.k.a. Rahm Kota has already been used in Star Wars so it is not original story telling and the writers of Star Wars Rebels like to keep their fans guessing. Kanan getting his sight back after using the Force to see after some time has…