i have dozens of comments on gsmarena over past 5+ years.. don't have time n breath to write here.. this also has proven that despite still respect for them they r the most stubborn n arrogant company.. they could've wiped out apple with just few sequels of (cult following) Xperia Ray, Z Ultra and a Z3 Tablet Compact(sequel with zero bezels for 7+ inch super phones calling it Mobile PS or Vita etc).. but no; they despite rotting under piling losses in count/market-share n sales (of phone division.. think vaio) they r slapping us for past half decades for how dare we tried to show Sony light.. n in this stubbornness it is rebuffing/rebutting these sequels no matter reaching today's pathetic sales state.
their stocks have nothing to do with phones division.. it was ready to be tossed out like vaio..
lastly this z ultra revival after 7 years is too little too late... cuz 1st these rumors r now a norm n popup every year.. now every 6-8 months.. 2ndly pathetic 21:9 form if bestowed upon that new so called z ultra will be joke.. current z ultra's 16:9 is best n this current z ultra's form-factor/chassis does corner to corner 7.4 inches.. ok 7.2 putting front cam.. this classic can render their own z3-tablet-compact relieved.. or other way round.. if 16:9 z ultra sequel has to remain rumour then atleast make upcoming say z4-tablet-compact a zero bezel, sim capable tablet with dedicated earpiece,  3-4 mics array n good cameras (not tablet quality if not flagship.. slightly above midrange will be ok)

now I can see the next Z Ultra as being a Sony foldable - if thats what theyve been working on. or it can simply be a new large competitive phone that matches the other flagship phone screen ratios.

but a 21:9 ratio would lend to a possible foldable outer screen sizing.

Z ultra has a successor. The XZ2 premium, i use it as my daily in work but also as a ping-pong racket on sparetime.

This could be an indirect admission that 21:9 ('CinemaWide') on phones isn't as popular as what Sony thought it would be.

Long live the 16:9 ratio.

...Weird, to say the least. I'd hope Sony could march on for as long as possible but I don't know if I should support weird product line expansions.

I think this will be the rumored Sony foldable screen phone.