niw, niw cases are mostly transferred. Because they want to verify you have employment, and you are doing research,
and you are not in sensitive technology area. It could be a rule
that all NIW get tranferred. I have never seen a NIW case not tranferred so far. This rule began from Oct/2002.
But think about it, you're Jan cases, if you get interviewed in 3 months ,it's still better than no news, or RFE or 2nd FP waiters.
anyway, now you know when you'll be approved. and you can get stamped on the same day.