It is probably not the best thing but there is many cases where athletes have returned to sport successfully after a year or even years off. Think Michael Jordan as one famous example.
In Canada, in 2000, Hayley Wickenheiser, probably the most famous female hockey player on the planet, decided to tryout for the Canadian Softball Olympic Team. In the early 1990's, she was quite an accomplished athlete and when to the Junior Worlds in 1995. After not playing for a few years, she committed for a year to softball and trained hard even doing a softball season at Simon Fraser University - that was during my first year as an assistant coach there.
Well, she worked hard enough that she actually made the Olympic Softball Team. She went back to hockey full-time after that but that a good example.
If the athlete is active and does another sport, I don't think it will hurt too much as long as she committed.
Best part is to tell university coaches why. Bottom line, they want player that can play. Can she?
Marc Dagenais
Softball Peak Perfomrance Coach
Softball Blog - Tons of Softball Tips and Drills