the Surface PHONE. the phone that can replace your Desktop...Tablet... Laptop....desk phone..
Im waiting for the Asus Padfone (Windows 10 version re-branded The Surface Phone) 4.3" - 4.7" Max screen size as with a tablet 10"+ or larger screen. why do you need a bigger screen on the phone when you can just change to a tablet so easily. plus the tablet dock NEEDS a keyboard case.
USB 3.1 connectors so data power and video out of one connector depending on what you need at the time.
Full windows 10 with a phone dialler interface. Intel 64 bit chip with 4+GB ram + 128 / 256 GB ssd. IF they can put Windows on a crash diet.!!
extra storage ssd / hdd for syncing and backup as well as just more storage in the desktop dock for those who still dont buy in to the "cloud" - Onedrive for everyone else.
desktop dock, wired connectivity for monitors, keyboard, mouse, RJ45 network, Phone handset (for using mobile connection when at the desk working with the "Phone" docked or connecting through the network to the office sip trunks and pabx to be your office desk phone).
For connecting the phone to the dock going forward wireless options for charging, USB, HDMI/display port, WIFI(802.11ac), Bluetooth etc. you should be able to use any wireless dock the connector would no longer be a device or manufacturer issue / limiting factor.
Something like this would cover most of my personal (non work) use cases and if i need a more powerful processor I can just connect to a VDI / VM supplier or to one of my own servers, this would allow Microsoft to sell more paas and compute as a service or just plain VDI's for users. multiple charging models possible. more power more $$, more software more $$, More memory more $$, More storage more $$. the list goes on.
The Phone Needs a powerful battery i dont want the thinnest lightest thing if it wont hold a charge of anything less than 2 days when being used moderately. current phone Motorola Razr Maxx has a good battery that lasts a few days and can fit in a lapdock, currently running Android 4.4.4. so close but not there YET.....