M.seven - yes but you would be able to make edits from the ps4 and yes they will keep supporting ps3,ps+,psn because they made announcement on that
Snail- If you have a ps3 and and a Ps4 why care for backwards incompatibility /only reason you are mad at any of the ps4 is because you got a xbox and now your a fan boy but from what seems what xbox wont be released till 2014