User blog comment:DaNASCAT/Technical Update: April 6, 2016/@comment-1251315-20160406203451/@comment-11733175-20160407145136

SMW and DPL are two different things. Sure, they have overlap, but there's things you can do with SMW that you simply can't with DPL.

Then again, if this Structured Data thing comes to fruition we could potentially ditch both.