On the MIT website, CentrePort has updated info on the rail park and first phases of development.
http://www.gov.mb.ca/mit/centreportinfo.html
Shows what the long term plan is for road access. The current interchange at 100 and PR 221 will be upgraded, instead of being replaced elsewhere, which was being looked at. Road access to 101 between CCW and PR 221 will be closed, which is good and following on MIT's plan to close all median opening and access points.