I haven't driven the new Odyssey yet. But I've had a 194.1" long 1999 Sienna with a whopping 40 foot turning circle and torsion beam rear suspension and now have a 201.2" long 2000 Odyssey with a slightly better 37.7 foot turning circle and a double wishbone rear suspension.
While the Sienna had a more comfortable ride by far, that was the only advantage it had. Despite being shorter, the Sienna was terrible in the parking lots with its wide turning circle and seriously turned me into a stereotypical Asian driver. The Odyssey on the other hand is noticeably easier to park despite being 7.1" longer, and I find myself misjudging the required turn in to get into a parking stall a lot less than the Sienna. Also the Sienna felt like a rollover hazard, although I still drove it like my 3 anyway knowing it actually wouldn't. lol. My Odyssey on the other hand feels pretty complacent when taking turns faster than what a minivan should and stays almost as flat as my Mazda 3 does.
FYI, here are the turning circles for modern minivans, ranked from best to worst:
2015 Odyssey - 36.7 feet
2015 Sedona - 36.8 feet
2015 Sienna - 37.5 feet
2014 Grand Caravan/Town & Country - 38.0 feet
My 2012 Mazda 3 has a turning circle of 34.1 feet. The Nissan Micra and Scion iQ are 30.2 and 26.4 feet respectively.
I think I recall reading some time back that the Dodge Grand Caravan will be discontinued and merged under the Chrysler name plate as one, but not sure when this might take place. Anyone heard further in this regard?
I believe the Dodge Grand Caravan will continue on in Canada as it's the stronger seller here.