No worries, and i can assure you, no SD card slot is going to be on this for retail version.
I guess OTG cable + usb memory stick would have to do for this cellphone.. actually 16gb phone with OTG is enough already, even if you have a bunch of games and apps..
if you are someone who store a lot of movies, music and other stuff like that on the phone, might as well do it on the usb memory stick..
I just hope they do fix it so it can be used in Xiaomi 1 as well, its really useful to have..