This would be my wish...

A new Draytek Router with Smart Home Technology Built in negating the need for third party black boxes and devices

Control the central heating in a similar way to this: https://www.inspirehomeautomation.co.uk/ but directly from the router.

Turn lights on and off. Open the gates at the bottom of the drive, close and open those blinds and curtains.

lock, unlock the front and back doors remotely, provide secure access codes so that holiday makers can access a holiday let, the ability to change those codes for the next guests, pre programed changes. create codes that can only be used between set times and dates preconfigured in advance of use.

I think that smart home technology will be the next big thing, integrating it into a single box and getting it right is inevetable sooner or later, be the first to do it.