2018 Toyota Sienna Gets a Makeover - Motor Trend
Instead of a complete redesign, Toyota has chosen to refresh the current-gen Sienna which has been around for seven model years already.
Cool safety features added standard, some kind of Android streaming for the rear, but it doesn't mention anything about Android auto or Apple carplay. 4G LTE WIFI in upper trims
One interesting thing that one of the articles mentioned...
"Toyota provides no evidence that it has resolved the Sienna’s primary flaw, which is its failure to earn a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS)"