Looks like the Star Phoenix Building site redevelopment is now moving through the City Hall rezoning process, as per the Engagement page.
https://www.saskatoon.ca/engage/204-5th-avenue-north
Exciting! It needs rezoning from M4 to B6 to accommodate ground floor retail, including a possible but not confirmed grocery story. Surprisingly, the drawing set seems to match the renders we saw earlier, with two residential towers of 24 and 35 (!) stories. The taller of the two is shown at 110m, surpassing Nutrien's 88m by quite a bit. I assumed this would get scaled down, but seems not to be the case.
Sorry, I always have trouble with imgbb or I would clip some of the plans and renderings to show. Nice to see some much needed density even closer to the core of downtown than Baydo (arguably right in the centre). Hopefully this progresses quickly.