evergreen line, millenium line extension on broadway all the way to ubc, another line from hastings park (or farther out) through waterfront station to the west end, maybe to denman... well maybe not that last one.
add trains & cars, expand stations, reduce headways as much as safely possible, upzone the lots around the canada line stations etc etc build gondola(s) to SFU, build double-decker tram system downtown... keep building!