The state of Riders of Icarus?

Yo, hello guys I have been abscent from the game for about a year and a half now and I was thinking of returning, though there's one thing I need to know. What is the current state of RoI? Are people even still playing? Is it still worth playing? What's drastically changed over the past 17 months? I'm currently downloading the game as I type this so i'll soon determine most of this myself but thought i'd contribute to the forums a bit and maybe get some early answers.

Also, hope everyone had a good christmas and new year!