R.M.
Wait a minute, you went out of your way to transfer her to one of the "top schools in the area," and now you're going to worry and micromanage her schooling? If you didn't trust this school, why did you put her there, since she would have remained in the GATE class with her peers in her old school?
"Miss the cut??" She's only in second grade. I can tell you from experience that you need to lighten up a little about her school. The most important ingredient of your child's schooling in ANY school is her teacher, and that will change yearly from grade to grade. Some will be amazing, and some less than that.
If you want her in GATE, and they offer it, then simply ask. Don't worry about her being bored yet -- the year just started. She will let you know soon enough if she is bored.
Now I will give you this: It's true that she might be bored, even in a highly-rated, top school. In first and second grades in two very highly-rated schools, my "highly-advanced" son (4.6 GPA, etc. etc.) came home telling me he was bored. So in 3rd grade we switched him to a charter school, where he was never bored again.
But she is doing well so far and seems happy. Remember: "Education is not the filling of a pail, but the lighting of a fire." If your daughter is happy and enthusiastic about her school, that's all that matters.