Heck the
2012 Coda Elite isn't even out yet, according to Jamis' website.
I wouldn't worry about drastic changes. Coda geometry has changed very darn little through the life of the model. Heck, the 2012 geometry numbers essentially match my 2004 Coda Comp. They've had a sort of disturbing tendency to downgrade parts over the years to keep the same price point, but then again the average quality of lesser parts has to be improving due to trickle down so it has to nearly wash.
RunningEast, I'm an inch taller than you (and somewhat more male), but your wingspan and leg length are greater than mine. I ride a 17.5" Coda in perfect comfort, and suspect the same might be true for you. My riding position is slightly aggressive for a hybrid, but there's room for more seat height than I'm using and the stem is 110mm, so there's a chance to go either way with a new stem. Give the 17" (what they're calling the same frame as my 17.5" these days) a shot - it might make availability easier for you.