Sony Xperia Z1S press render leaks, Xperia mini global variant or Z1 for T-Mobile USA?

Famous leaker @evleaks on his Twitter account has posted a press render of the Xperia Z1S, entitled "Sony Xperia Z1S, 2013".

There is no other news except the name of the upcoming device, but by the title we can presume that it's a handset that will be released this year.
Earlier this month, Sony has released the Xperia Z1 f for the Japanese market, but will the Xperia Z1S be a global mini variant of the Xperia Z1 or a T-Mobile variant of the latest flagship by Sony? We will find out soon.
What do you say (want)?
via