It's pretty much just another fandom at this point, the fandoms still around, and even grouwing in some ways, the conventions manage to still draw more people year after year rather than less.
The show itself is still pretty good, I never got the people that thought seasons 1 and 2 were somehow mindblowing and there then went to shit after that, the whole thing has just been an above average cartoon to me, Season 3 was probably the worst, and I don't really care one way or the other about the princess twilight thing, season 4 was all around solid and probably my second favorite season, the fifth season is shaping up to be pretty solid as well, season 2 is still my favorite but the quality is still pretty high.
The weird made for tv movies caused some drama for being set in an alternate human high school setting, those I don't really like, but the show itself is content so far to just pretend the movies didn't happen. The comic series is pretty good though the tech level is even more schizophrenic than the show.
Tumblr still gets its panties in a twist about bronies from time to time, the last one was that Church shooter a little while ago, someone photoshoped a pony t-shirt on one of his arrest photos and a small group picked it up on Tumblr and tried to pass the shooter off as being a brony, that was pretty cringe-worthy.
Basically the crazier people moved on to different fandoms when pony wasn't getting them the attention and drama they craved, and the rabid anti-bronies either found a new fandom to hate on (I hear steven universe fans get a lot of shit now, though for different reasons) or they've learned that they look worse than the crazy bronies when they start ranting like lunatics anytime someone even so much as mentions the show.
Overall its pretty good actually, probably disappointing for those that thought the show was going to explode into a cultural phenomenon the size of Star Wars or something, and those that hated the show and were convinced everyone would abandon it after a couple years are probably disappointed that never happened. Really though, it's kind of chill, you get your small fandom dramas, but nothing like the first two years.