It is. There just doesn't seem to be a lot to focus on atm.
I wouldn't say it's dead. It just hasn't had anything new to focus on for a bit.
The TV series is based off of the comics, and takes the same name, but they are different in many ways. Enough so, that the TV series has its own identity.
Dishonored is the wiki I've been on the longest, but with the last game coming out last September, the site has kinda died down at the moment. Luckily, this leaves me more time to focus on Izombie especially with the new season coming out. :)
A few reasons.
For one, I'm an admin on six different wikis already and a heavy contributor to the German version of the Dishonored wiki. I'm already taxing my limit as it is.
Second, while I'm a huge fan of comics (and have even owned a comic store at one time), there's a bit too much drama involved in the various series and this, unfortunately sometimes carries over to certain fans themselves. I've been trying to avoid this lately after having to deal with a particular set of Dishonored fans.
I don't mind reading the articles at the Arrowverse wiki, but I prefer just 'stalking' the wiki from the shadows for the time being.