SLC has a transit master plan out, with what seems undue haste. (I missed the comment period, and I am what one might called 'engaged' on the topic, being both a transit planner and a SLC Citizen.
Check it out here.
Looks like it was started in 2015, which public data collection done in mid-2015. And is just being released now? I know SLC lost it's transportation director, but the 'hang-fire' on this makes me wonder if there isn't something else going on, politics-wise.