New 24-70mm f/4L IS and 35mm f/2 IS

[nvitalephotography]

will the 24-70 replace the 24-105 or will they continue to make both?

[M_Six]

That's another question. If the prices on 24-105s continue to fall and the price of the 24-70 does not, sales of the 24-70 could be impacted. I think a lot is going to depend on the IQ of the 24-70. Canon's latest releases have all shown marked improvements in IQ over their predecessors, so there's no reason to think the 24-70 won't do so as well. That fact alone could tip the scales for pros and devout hobbyists.