There was a mention of this a week or so ago I believe. One of the PES game developers has said that there isn't likely to be a Piggyback guide like there has been in the past. However he said there is a possibility of a guide of some sort still being released which seemed to confuse everyone, for obvious reasons. An online guide? I'm not sure at the moment, and I'm not even sure if Konami have sealed anything in terms of a guide yet.
If there's a year PES ever needs a strategy guide, this seems to be it doesn't it. At least within the last 4-5 years anyway.