The 50mm f/1.4 is, by far, my most-used lens. I’m with you 100%.
I’m a little concerned that it might be slower in order to accommodate IS, but the 35mm f/2.0 IS gives me hope! 4-stop IS on an f/1.4 aperture would be a dream come true for me!
For those saying “why do you need IS on a non-tele with that big of an aperture?!”, well, some of us need to run and gun in low-light where a tripod would be extremely prohibitive. (for me, alpine starts while mountaineering. “Hey rope team, do you mind if I get out my tripod and and get some shots with mirror lockup? I know that it’s 2am and dark, windy, and cold but ISO 6400 makes baby Jebus cry…”)
Keep the dream alive!