To OP:
I sold my 7 year old 24-70L a week ago. I have a 5Dc body and now I am looking for a lens to fit my shooting style. Like you, I like landscape , few portraiture, and street photo style.
I almost pulled the trigger for another brand new 24-70L and a 100mm f2, but still does not like the weight of the "Brick".
My budget is below $2000, so I kinda thinking of getting a nice 100L macro for street photo with few closeup subjects to mix with and match it with 24-105L. I`m still undecided.
Today, after researching again. I looked at 24L II and it does what I do best, landscape, can do close up subjects (min. focusing distance is around 8-9 inches.) and portrait too if you move closer.
it has f1.4 that gives a better bokeh too! Then I`ll match it with a cheap Canon 85 f1.8 for real portrait and longer focal length if needed. Did I forgot to mention street photography also?
BTW, when I had my 24-70L . I shoot 24 mm or 70mm outdoor most of the time.
I think I`m gonna pull the trigger this time!