First of all though I want to talk about the models. They do look quite cool when not purposefully painted up in tomb-king like colours (blue and brown kind of scheme) - they just look too comical. One more thing to note is that everything has a quite a good background - necrons are no longer so mysterious, we know about their different divisions and we also know more about some of their units. This imo is good.
|Image from gw used without permission|
What this may mean is that necrons are the height, or nearly at the height as tau are about to be released, of 40k shooty armies and that further on we might be able to expect the game to become a little more cc orientated - just by looking at how best to deal with the crons.
Next point, the wd batrep has an interesting scenario - rumours of fixed game turns have been circulating for a while this just confirms that random game length will most probably be taken away. Objectives still are there - but not random numbers of them as well. Combine fixed no. of objs and necron hqs which count as scoring and you get the idea that there may be more "special" stuff that can claim objectives in the later 6th ed codexes.
Disclaimer!!!! These are all just my ideas having seen some of the rumours on the internet and my interpretation of the scenario in the white dwarf - I am by no means saying that my view is correct, just pointing out some interesting things and saying how they may correspond to future rules.