You just never know what you'll hear at conferences.
You might, for instance, hear Nissan America's director of product planning, Mark Perry, casually mention that the Nissan Leaf electric car now permits Level II 240-Volt charging at 3.3 kilowatts--"and we'll raise that in a year or so."
In other words, Nissan plans to offer a higher-rate onboard charger for the Leaf, which will significantly shorten the present recharging time of 8 hours for a fully discharged Leaf pack.
http://www.greencarreports.com/blog/1056343_breaking-nissan-leaf-to-get-faster-charger-in-a-year-or-so