Tl;Dr version: I’m proposing keeping Seismic Slam’s homing range at 20m but reducing the damage. Reasons below.
So while I do agree with most of the nerfs coming out for Doomfist on the PTR since he is pretty broken, I think limiting the movement on his homing seismic slam (the blue reticle “E” ability) to 15 meters is pretty threatening for any Doomfist player. The only reason he is viable are his rollouts and reducing the homing distance of Seismic Slam by 25% makes a lot of these rollouts undoable. I can play with reduced damage but limiting his movement will basically make him a trade-bot since you won’t be able to get out of a fight fast enough not to die.