I think it's quite likely if they reduce price at the right time. Otherwise it will likely remain flat, so around 53-54 million.

It would need a yoy increase of around 10%, which should be a fairly simple target to beat with some good software and marketing. It wouldn't be beyond relatively normal yoy growth for a console at this stage in its cycle.
This is actually a fairly tame and safe prediction compared to the OP's usual ones...

this is my belief as well... by end of year:  ps4 55-56m.

Im pretty sure 2016 is a 19-20m console sales year.

It will sale 22 mill this year, you heard it here first guys from the future quoting this. YEAH BABY WE DID It!!!!!!

Nice prediction (like every year lol)!
My prediction for PS4 is that it will be at 56.8M at the end of 2016.

I go as high as... 58 million sold through PS4 consoles by the end of 2016.

I think it will be around 57 million.

i think 60mio

This year's prediction definitely is much more tame and attainable than your previous ones.

I'm thinking it'll to do 55-56 million.

I believe 55-56M is what PS4 will sell, more close to 56M.