yes, she can. not sure if she will, but she can.
she needs to play as many good tournaments as she can qualify for (doesn't want to be playing a bunch of scrubs that don't help her rankings), but she can't play so many that she gets burned out right away.
even though i don't really like the guy, i don't think anyone has the stamina or determination to barnstorm the world playing sats and challengers like agassi did. hingis just needs to take it one tournament at a time and not worry about jumping back to the top all at once.