She was all geared up to play challengers after Dothan, but I don't believe she will come back now. Everytime I hear things about her comeback I trust my source but I, like many other fans from the past, keep getting assurances and then nothing happens.
She had a lot of talent, and we can only speculate why she is not playing any more, but the tennis world moves on and there are plenty of youngsters coming through to cheer on every year. Check out the junior ranks and find a new star to follow!
Best of luck in whatever you do Mirjana though.