I did this flow chart a long time ago that shows the various treatment paths.
Have a look at this: http://bladdercancersupport.org/bladder-cancer-forum/3-newly-diagnosed-/28419-the-map-of-the-journey.html
Short answer: If it is just the top layer (sometimes called superficial but I don't like to call it that because it seems to trivialize something that should not be) and if it is low grade then it is typically a cystoscopic exam every three months for a year or so, then every six months for a couple years and then every year.
The reason for this is that bladder cancer has a very high recurrence rate.
If it is high grade then you will likely be treated with BCG. If there are not clear margins or if it is mid to high grade (2 or 3) you will likely get a re-TURBT in 6-8 weeks. This is also VERY common to go back in for the 2nd TURBT because bladder cancer is also VERY OFTEN understaged initially. It also is a way to make sure they got it all and nothing came back.
While the words above don't sound so great, bladder cancer is actually VERY treatable. Hopefully, they caught it early, got great margins, it is only on the topmost layer of the bladder and is low grade.
Let us know as soon as you know something. We're here to help. We've been there/done that!
Mike