Watilist letter of interest question

<p>I applied to the biochemistry major. But realistically now I think if I went there I would end up majoring in something that lends itself better as a pre-law school major (philosophy, poly sci.)
Of course I was waitlisted, but for the letter of interest should I say anything indicating my change in intention of majors, or that I am more or less undecided? What is better for my chances? Does it matter?</p>

<p>Thanks</p>