BOAC
If you can get cables down and through the wall, why not just pull in some draw wires so IF you need to add anything then the means to do so is there.
You see, I have problems with putting in "links" for things like Sat/cable, lan, etc. Every joint/connection is a weak spot which will cause signal degradation so if you add an extra 2 unnecessary weak spots you could have issues.
Also, will the same cables be in use in 10 years? We don't know if various things will change to optical, or the cable type for lan, etc, will change, do we.
As far as sat cables for lnb's goes, it will depend on what sort of system you would be upgrading to. You can run a 3 lnb system (ugly and always a compromise) so that would mean 3 cables OR you could run a motorised dish so only one lnb cable PLUS the thicker cable for the power and positioning wires are needed. So by just running spare lnb cables, are you really "future proofing"?
Now, to expand on Gertrude's solution, IF the wall has been pulled apart for some reason why not fit a 2"x2" cable trunking in the wall there? That will give you so much space to play with for any future wiring as well as making said wiring easy to install.
PS. As far as lan goes you can also use the powerline solution which means absolutely no extra cables are needed as you use your existing electrickery wiring as your lan cables. It's reliable now