She should release two more singles if her label is smart, I think the public has enough interest in her that if they got something different it could work in her favor.
Lets look a the fact that "Die Young" went to #2 after her long ass break and it would not go away. People are still here for her, just not her same formula. So she needs to mix it up.
This time though she needs to keep up in the public eye, so its good her show is coming soon
And she's touring in the Summer, so she could release another EP, after and then get right to work on album #3