I don't want to hype the game up because I personally don't like to hype up games to the extreme, but base on what I view for the pass week and especially today, lines, lots of events, tumblr and twitter cover in Pokemon XY feeds, news channels and papers etc. Pre-orders sold out entirely in Japan alone.
I'm curious to see the sell numbers next week. ( Japan Retail Only - 1,559,000 ) The number could of change by now.
PS: Give a "YEAH!!" if your going to or already attended the Nintendo World Pokemon X and Y event.....I hate you *Jealous* :( and I'm not turning this into a "who better senerio", I'm just posting this for fun. If you ask me, it won't be 18 million, but it will be close, maybe 8 or 9 million, retail alone.
“Don’t follow the hype, follow the games”
Here a little quote I want for those to keep memorize in your head for this coming next gen.