Surely every game in the Diablo extended family qualifies as a top-down ARPG? And all the Diablo-likes: Path of Exile, Torchlight, Van Helsing…

There have also been a bunch of more offbeat top-down ARPGs the last few years. WarHammer 40K Inquisitor - Martyr (boy, isn't that a mouthful) is solidly in the genre, though it does subvert some of the genre tropes. Lost Ark is supposed to be coming over from Korea this year, and despite being an MMO, it's also a top-down ARPG.

It may not be the biggest genre, but there are quite a few if you look around.