QUOTE
ACTUALLY...
After five years or so and MILLIONS, if not BILLIONS, of dollars worth of research, Mohinder said HIMSELF to Sylar (posing as Nathan) that even if he had more time and more money he would probably never be able to reverse people's abilities.
So I'll ask again. What exactly is it that she expects to be cured of?
Yes, but Niki doesn't know this. She doesn't even know that it's genetic. She probably thinks that something's just different about her, and she wants to be normal again. She wants her powers to be cured. Bob may or may not know whether or not these powers can be cured or not, but he certainly wants to use Niki's powers.
Now, I don't remember completely, but did Bob say that he needed Niki to do something for him FIRST? Or in RETURN? Because the order matters. If it's FIRST, then Niki does not have the virus, because otherwise her powers would not be available to the Company, so she wants her powers cured, and she needs to do the job before she has her powers cured. It would be the other way around if it was in the reverse order, with her cure required before her powers can be used. I hope my wording isn't too confusing.
Besides all this, powers probably can be cured from people, considering the Haitian and the virus can suppress powers, I'm sure the virus can be modified, or a device created that will allow unwilling heroes to lead normal lives.