Currently, Route 49 runs via Pine between Broadway and Downtown. I feel like this would be a bit redundant to the future Route 2 on Pine, but then I also think Route 2 would not have enough capacity to carry all the riders between Seattle Central College and Downtown. Moving Route 49 to Madison would be nice, but that would duplicate RapidRide G. Metro has a plan to merge Routes 49 and 36 and run the combined route through First Hill. However, this has received much criticism because many 36 riders ride to International District, and this combined route would break that one-seat ride.
Merge with First Hill Streetcar
The First Hill Streetcar would take over Route 49 north of Pine St. One problem with this is that the First Hill Streetcar is ridiculously slow, and having it take over the 49 route would not be so desirable. A solution is dedicated transit lanes, but 10th Ave is a bit narrow for that.
Replace First Hill Streetcar
Route 49 would replace the First Hill Streetcar entirely, running via Broadway, Boren, and Jackson. One problem with this is that so much money was spent on the First Hill Streetcar, and now the track exists, so it does not make too much sense to get rid of it.
Route 49 would run via Broadway, Seneca, 9th Ave, 8th Ave, and Yesler to Pioneer Square. Route 60 would move to 14th/15th. This would relieve some congestion on Route 3 between Harborview and Pioneer Square. This would also make use of some existing trolley wire on Seneca and 9th.
Route 49 would run via John, 15th, Pine, 14th, and Yesler to Pioneer Square. This would extend the Yesler service to 14th if Route 27 is reduced to peak hours (refer to my Central District restructure for more information). However, this would require placing new trolley wire along 14th and 15th. It would also mean that 49 riders lose their one-seat ride to SCC, but then they gain a one-seat ride to Group Health.
This is similar to the 14th/15th/Yesler proposal, except the bus will run via Jackson instead of Yesler, and terminate at International District Station. This would connect people along the 14th/15th corridor to the International District.
Route 49 would run like Route 43 between CHS and Westlake. This would allow Route 10 to move back to Pine between Bellevue and 15th to supplement Route 2, but then riders along 15th Ave would lose their one-seat ride to CHS, and 49 riders would lose their one-seat ride to SCC without gaining any new one-seat rides.