I wouldn't say downhill, this is a re-release of a previous case that is itself a rebuilt version of the Crystal 460X which is itself a redesigned 400C.
I'd argue that they are going nowhere. As much as I like the 400C's design it would be nice to see them change things up.
I was thinking the same to some extent. It isn't terribly nice to look at, neither is it godawful either. It's just "not bad"
Bang on about the price though, £140 is absurd money for how much case you get. I'd rather save £45 and get a Phanteks Enthoo Pro M Tempered Glass instead. Much better looking and get far more for your money