Mixers are mostly there, at least as far as signature campaigns are concerned. There will be some from other branches, but mostly short-term, only for a few weeks.
I don't know how many you follow mixers area, but a couple of well-known mixers (at least on Bitcointalk) have gone out of business, some have turned into scams, and in the meantime, some new ones have appeared. For now, the campaigns and the growth of the forum itself are still on an upward path, so we will see what time will bring.