The upside potential is that other development agencies have already provided 60-65% debt (so far as we know), so why is EDC even involved if there's no debt left for them to provide? Farhad has stated that those other agencies cannot provide more than 60-65% debt (by virtue of their charter, mandates, etc).
Is EDC going to bridge the "equity" chasm so we take much less equity and more debt @ 1Mtpa? Or will Allana announce 1.5Mtpa or more right off the bat? That's where I think EDC's involvement could be interesting.