The list of upgraders can be found here in the Alberta Industrial Heartland section. There has been some recent developments regarding these project and I have done my best to consolidate them in a list.
Shell Scotford Upgrader Expansion 1
Shell Scotford Upgrader Expansion 2
completed - thanks squidly!
Sturgeon County upgrader
(Fort Hills Petro Canada/UTS/Cominco)
Fort Hills upgrader joins delayed list
BA Energy Alberta Heartland Upgrader
North West Upgrader
"waiting to further finance"
Synenco Energy Northern Lights Upgrader
From what I can figure out it doesn't look good*
Statoil North American Upgrader
delayed two years*
Update: Statoil looks at shipping bitumen to U.S.
The Norwegian company said in a statement it withdrew a regulatory application for its upgrader in Alberta's Heartland region due to "prohibitive construction costs, the state of the global economy, an uncertain oil price outlook and lack of legislative clarity."Total Upgrader
delayed two years?*
Update: The Calgary Herald has a list of projects delayed, canceled or on hold. It lists the Total Upgrader as "on hold". I'll post their list in comments.
*More specific information regarding these projects would be appreciated