The 24-105 could be a cheaper FF option. Some people were banging on about that here so I guess there might be a demand but seriously? So you fork out $1600 on a FF 6D right? Assuming you went body only. And then you go an pair it with, what I assume will be, a cheap kit lens with compromised IQ? Why? Why not just stick with a rebel and a 18-55 kit lens if you're a cheapo? Having a FF camera means you give a s___ about IQ. This rumor makes no sense.
I currently use the discontinued 28-105mm f/3.5-4.5 USM II for that purpose. Surprisingly, this is one of the lenses that the 5d3 and 6d have included for Automatic Lens Optimization. So Canon is obviously aware that there is a need. If this new one is small, light, and affordable, it will find its way into many bags. I'm hoping its street price comes in between the 28-135 (~$300) and the 24-70 f/4 (~$1000). Great for outdoor, walk-around, f/8-and-be-there kind of shooting.
This already exists - it's called an EF 24-105 f/4L IS and costs around $600 if you shop around.
I really don't want to waste bag space on a slow midrange zoom.
Isn't that what the 28-105mm f/3.5-4.5 is?