i'd have to say probably not.
sure dumbledore somehow managed to make draco waver
with his cross-over-to-the-good-side speech
but remember draco comes from a family deeply committed
to voldemort and he has only just started to carry out jobs
for the dark lord..... if anything he would be given
further tasks, and he'll be voldemort's best mate (or so he'll think).

i personally would be disappointed if he did join the good side,
because draco, by being who and what he is,
helps keep the balance between good and evil.