With the both PS4 and 720 releasing this year and both supporting 8 or more cores does this mean future titles like BF4 will be optimised for 8 cores? Will my quad core processor look very 2012 before the year end?
Well considering that bf3 already uses 8 cores I'm going to say yes. I actually average above 75% usage on 5 of my threads in my i7. Plus more and more games are using 4 or more cores so in the next 3-4 years it could be 8 or more cores.
Your 4 core CPU should be ok into 2014, but you've seen the writing on the wall...I would start planning an upgrade next year for at least CPU and possibly MoBo (whether you're AMD or Intel will determine if MoBo is necessary, as AMD will still use AM3+ socket, where Intel sockets are all effectively dead)
I've made my stance on this very clear in the PD forum. For single applications, you are not typically going to see scaling beyond more then a handful of cores, due to a variety of factors.
We don't know your stance you made there. But you can use as many threads as there are processes within the program that need to be computes at once. That's not saying that it will be faster though. At least that's what I've read.