Reading this PCPer article and watching the interview with Raja Koduri:
http://www.pcper.com/news/Graphics-Cards/AMDs-Raja-Koduri-talks-moving-past-CrossFire-smaller-GPU-dies-HBM2-and-more
https://www.youtube.com/watch?v=4qJj1ViyyPY
it seems that the guys at AMD/RTG believe that GPUs will take the same path that CPUs took several years ago and, instead of big chip, we'll start to see more multi-GPU configurations.
Oh, and by what he said at the end of the interview, he seems to be the first one interested in launching Polaris as fast as possible 
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Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
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