I imagine she escaped the crocodiles, but was arrested soon after. If she did survive, she probably plotted revenge too - just perhaps never got the opportunity to put it into action! (I'm guessing - I haven't actually seen The Rescuers Down Under but I hear it's about something completely different!)

I kind of figured something like Captain Hook's fate (if I remember right), just forever trying to evade the crocs. xD

I always thought either the crocodiles ate her or she escaped