[neatoman]

I'm not clear on how Donatello disappeared in the world of "Same as it never was". At first it seems like it's the result of Don being sent into the future, but the other characters imply they don't know how he disappeared or think he just left at some point, so that can't really be the case since they knew about Drako/UN. So is the implaction that Don was instead sent to an AU in which he did leave for unspecified reasons?