I'd like to thank Dave Reeck and Dustin Smith of Tableau for helping out getting this working - sorting out Kraken -> publicbeta.
For those not following the v8 beta site, this was constructed using beta6 and tested out OSM (WSM), multiple data sources, joins and parameters. Most exciting is the forecasting - shown here by the light blue columns. The potential of the new capabilities in V8 are really quite something. Also, formatting in v8 is definitely more intuitive.
As a project, this is still a proof of concept, so it's a work in progress, but I thought I'd share.