I'll be totally theoretical, as still on my way to upgrade to FF, but based on my experience and Canon's offer I plan to use 16-35mm f/4L IS and 70-200mm f/2.8L IS II for all-around travel photography. Both are superb and I'm sure will suit my travel needs way better than current pair I use (Tokina 11-16mm f/2.8 and Sigma 100-300mm f/4). It is best to use on two separate bodies, so you do not need to swap lenses. I'm not sure anything is needed between wide and tele (35-70mm). It is truly depend on how and what you shot. But if I will get to such requirement – I will consider one of the 24-70mm or 50mm fast prime. About your primes. 16-35mm is not a replacement for 35L prime, unless you don't really use it's wide aperture. 70-200mm f/2.8L (especially IS II version) can replace both 135 and 200mm primes, because it is very good. But if 200mm has almost nothing better than 70-200m f/2.8 (except for weight, of course) the 135mm has several edges. Again, depends on your needs. Having 200mm f/2.8L and 70-200mm f/2.8L I would certainly get rid of the former.
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