Don't see the need to fill another ~800,000 bbl/d of pipeline as the new drilling activity  is backing up the older wells that decline about 60 - 70% each year.  Same applies to Energy East except that project is not going ahead for different reasons.   One or two pipelines might be needed once the oilsands expansions get online.  But this increased production is already addressed by KinderMorgan's TransMountain and Enbridge's Line 9.  All the rest is just posturing and issue framing.  Issue framing that likes to politicize decisions that are largely determined by supply and demand.