Here is what I'd like to see:
1) Alexa integrated into telematics of automobiles. Not only controlling car functions (temperature, GPS, emergency, audio/music system, e-mail and text reading, engine warmup/AC cool down, etc.) by voice but accessing home for things like sprinklers, alarm systems, thermostats, smoke/carbon monoxide detectors, washing/drying machines.
2) Direct support for it being a hub like Samsung SmartThings supporting standards like Z-wave and ZigBee. No need for an independent hub device.
3) Consolidated daily updates on important items drawn from different sources (calendar appointments and important dates, energy usage of home, water usage of home, gas usage of home, gas (or other power source) usage of cars in garage, weather, traffic, customized news (shaved down from flash briefing), etc.