that is possible, AMD has a tendency of keeping there sockets active for a lot longer, and there are always upgrades to FX 8XXX and 9XXX series processors. As games are becoming more threaded there is a very good chance that those could become more viable options in the future.
Future upgradability is usually best suited to keep the future upgrades simple (and thus more cost effective) most likely your only processor upgrade option for the intel side will be to a current 4th gen i7 as they will likely never release another compatible processor on the 1150 socket.
However keeping other options lower, cheaper video card, less ram (most people don't use more than 4gb's of ram in a gaming computer only a few games utilize more than that (BF4, COD Ghost's etc.) (the other games you listed will run well on 4gb) by doing so it is very cheap and simple to acquire more ram in the future with no loss, trading a video card in a better video card can be quite cheap, as you can always sell the old one on ebay and get a majority of your original price back.
Typically as the owner of a custom build shop myself I would suggest choose the right processor now, its the most expensive thing to change later. (sometimes requiring motherboard, processor, and ram to be changed out. ) as long as you plan to continue to upgrade this system in the future.
If you however plan to run this system for the next couple of years before upgrading get the better video card, the performance increase will be much more noticeable.
Unless of course your video editing/rendering could possibly become a money maker for you then processor still wins out. Intel decimates AMD in Editing/Rendering.
Hope this help's feel free to ask should you have any further questions about your build, Its the whole reason I got into this field is to help people out finding the right computer for them.