I see none is concerned with the weather..well,a fully automated airplane entering a cb would change your feeling about flying for ever,I bet on it.
Design one to circumnavigate a cb?..well,sometimes even modifying wx antena tilt with 1 deg will change the picture a lot,not talking about wind,embeded cb,squall lines..etc..
...not so soon,I guess...even on Star wars they had pilots,sometimes helped by R2,though