I might be able to enlighten people a little bit on possibilities of the aftermath of Milk's survival. I generally agree that Milk and Feinstein would've been at each other's throats on several issues, though they would've definitely had common ground in seeking out federal funding for the direly needed rebuilding of the Cable Car system. Another butterfly that could result from this is San Francisco keeping the neighborhood-based District system for supervisors (pre 1976 and 1980-2000 supervisor seats were voted for at large). Also, Milk was very pro-public transit, he played a role in the development of San Francisco's monthly fast pass and wanted to move towards making public transit completely free. He'd probably also be supportive of efforts to expand and upgrade the city's public transportation system (since he was a regular user of it), so things like the F-Market, the electrification of several bus lines, and LRT for the Richmond and Bayview districts would probably happen ITTL (most of it, with the exception of the Richmond LRT line on Geary happened OTL, though it would be on a greater scale ITTL). The best possible moment for him to become mayor would be after Feinstein leaves office in 1987, a house seat or the governor's mansion might be possible after that, depending on how things go (Like how he would handle the ATL Loma Perita earthquake Feinstein's OTL successor, Art Agnos was killed politically by his move to demolish the Embarcadero freeway), though he'd be getting up in years (he was born in 1930 after all).