New technologies like Hadoop are reinventing analytics. Most of it is breakthrough additions to existing analytic systems — and some of it is reinventing the wheel (and alternative caption would be “it’s for car-like workloads — the rest of it is coming soon!”).
Yes, many existing DW workloads will move to Hadoop. But just as many will move to new HTAP systems like SAP HANA Live that uses in-memory to let an operational system behave like a powerful DW, without any ETL or data duplication.
Organizations need a plan to use the best technology for the best uses, for ALL types of data needs — and that goes beyond just “analytics” and “data warehousing”.