I think Sarah is going to totally and completely immerse herself in her studies at Yale, and with all of the wonderful things that university has to offer - cultural events, clubs, new friends, etc.
She will be taking a heavy course load, from what I've read, so she simply may not have any time to fit in serious figure skating training. Most likely she'll still find a few hours to visit the Yale rink to keep herself in reasonably good shape, but I would not expect to see Sarah in the kind of fighting shape she was in at Salt Lake City. She had really peaked for the Olympics, and did it ever pay off for her.
I agree with you. Sarah Hughes is a level-headed, intelligent young woman who knows what she wants to do, and I think she will be successful in her college studies and in her future professional endeavors.
Good luck, Sarah! Have a wonderful four years at Yale U.