I was going to get it for improved auto focus, but the XF 35, though beloved, is no longer my go to focal length for street photography since acquiring the XF 27. For my portraiture work fast autofocus isn't a priority, and depth of field is. When you factor in the price and the rebates I think it'll be a lens thats better to purchase down the road...
I don't know I'll probably pre-order lol.