No way it will be able to do 4k ...
Keep in mind that consoles are always weaker than pc... They are like low-mid range pc's... And if nowwadays even high end pc's can't display 4k resolution properly, how will a console do that?!
Another question: do we really need 4k resolution? Doesn't it still need time for us to fully experience fullHD? Before 2005 we were fine with regular tv's..and that over 50 years...so don't come along and pretend that its time to move forward ...its not!
Even now, at the end of 2012, not everybody has HD capable tv's...but besides that:
I don't see any benefits for consoles with 4k over 'regualr consoles with 'just' HD...they better bring something innovativ to the table...for higher resolution just use a damn pc
