I'm keeping my D3100. I don't feel the need to upgrade for so few goodies. If I upgrade, it will be to a D7000.
As a rule I don't jump on the "latest and greatest" bandwagon. However I'm going to give the rumored 18-300 zoom a long look.
If I was upgrading from a PNS then I probably go for the D3200 unless there was a fire sale on D3100. I'm going to speculate you'll see plenty of D3000 owners going to the D3200 and skipping the D3100 altogether.
I agree with you zeke. When I upgrade my old D60 I'm not going to get the D3200. I'll save a few more pennies and go with the D7000... UNLESS, Nikon announces a new D7100 later this summer. (rumor only at this point).