I have taken a look at the new items, overall I like what is done. On terms of gold generating items for supports I'm not very happy.
The only two gold generating items for supports remain to be a philo stone and kage's lucky pick, since most supports are AP based this is not very bad. There are some supports that will become less viable because of this however.
I feel for instance that the best way to use a Kayle as a support is to build her tanky with some AS (her passive plus e make her insanely strong as a support with some AS). With the new items you'll be forced to go AP/aura with nearly all supports since avarice blade is only viable when you kill minions and HoG is not available any more.
I hope riot will read this and feel the same way about it.