No halo this year. Just a guess. Could be wrong but 2014 had the masterchief collection and 2015 had halo 5. 

Then you should easily be able to stream 4k, no need for a console to do that.

And probably you can watch 4k videos off a usb-stick and with dlna which won't work with consoles.

Invitation request sent (I had to boot my Windows 10 vm which took an hour to update "apps" from the store, including the Xbox app because before there were no clubs at all).

Just wait until their streaming service comes online and you pay 30$ to play a movie for 24-48h. Suddenly buying a 35-40$ UHD BD that comes with a standard FHD BD and can be watched multiple times seems like a good deal.
At least that's how much movies cost here in Switzerland. Up to 20-25$ for the "rental"-streaming services. And Netflix could have a better selection. And Amazon Prime doesn't exist here.
But we'll see.

Umm was there not a atatment recently (a few weeks ago) that said that the xbox had the stongest week since its launch in the U.K. Now Sony is having their turn at this kind of news. - launch prob contributing and temp price cut for slim. What is your point? You are not the type type that jumps to concusion based on very short term developments. I admit I am a bit guilty of this kind thing too but really...One week of evidence to form such a dramatic conclusion??

Still weren't able to read 4k content on stick

europe is sony land dont forget that

What? Consoles? The TV? Which fileformat? Which codec?

My TV, I tried several Mpeg and mkv videos using External Drive, Pendrive, etc and the archive is never recognized by the TV.

That's odd but could be a problem with your TV.

http://www.samsung.com/us/support/answer/ANS00045927/