Waitlisted from UW.. what are my chances of Admission?

I got my letter yesterday from UW that I was offered a spot on the wait list from UW… The letter said that they consider your first semester grades from senior year. I sent in the wait list response form right away.
I got straight A’s from first semester. Can someone tell me what my chances of admission is?

What were your stats? (Sat, overall gpa)

Overall GPA: 3.44
SAT score: 1600

And how do you think your EC’s and essays were?

Are you in state? With straight A’s senior year I think you have a high chance. What were your ECs?

Yes I am in state. My essay was really personal… and I think my essay was good. Im sorry I don’t know what EC’s are…

Extra curriculars

Oh, yes. I’d say that I am involved with school and my community

We have similar stats (3.64, 1620) and I have a feeling I will be put on the waitlist. I am in state also. What did the waitlist envelope look like?

Its a white envelope

In stage waitlist. You guys will get in, not everyone who gets accepted goes to UW