Relation between Integrated Planning and BPS

Dear all,

I am just considering about using the BI Integrated Planning. I have a few question about the relation between BW-BPS and BI Integrated Plannning.Can anybody tell me about the near future about these both two? Is the BI Integrated Planning going to replace the BW-BPS or are they going to co-exist instead? Do we have to use them both? Although I'm not used to the new features of BI Integrated Planning, I just quite don't get what is the advantage of using them besides ensuring the future development.

Best regards,

Takashi