I made this one a while back for SSP and updated it a bit.
Red Line - Largely stays the same, with the Providence spur and a Walden Extension
Blue Line - MRU spur under 37 ST from Westbrook, 85 ST extension
Green Line - Low floor, follows current alignment from North to Quarry Park, then back Westward, T'suu T'ina
Terminus. International Avenue spur after the Inglewood 11 ST Station (uses BRT bridge now under construction.
Purple Line - Low Floor as well for coupling through Ogden and Quarry park, then follows the current Green Line alignment South to Seton. North from Quarry park, along 36 ST to a transfer station at Marlborough. Then West ward along 16 AVE through Bowness (not convinced on this alignment) to COP.
Yellow Line - Urban Transit Gondola connection Westbrook and Brentwood Stations. Stops at Parkdale, Foothills and Children's/University .
I'd like to add regional lines if I get the time. Link to scrollable map with stations:
Nice map. I really like that may of your lines end in forks. It seems like a reasonable way to access certain areas of the city.