I'm not sure which update this was, but the Lab has changed from before. Morlin isn't there, there's now pedestals for the Boss Rewards, and an Emberlight Gremlin and Hubert the Slime are there as well. I don't want to change the Wiki page since I may mess something up.
Updating the Laboratory page


Oh, it changes based on mission completion? Well, someone needs to upload an updated version of the Vanguard Lab, since I'm still Defender Elite.
And maybe a progress update for each rank, like for instance Morlin was replaced by an Emberlight Gremlin and a Veteran Knight after the defeat of the Roarmulus Twins and the rank up to Defender (whoa, run-ons).

Added some needed info related to that patch.
I've uploaded a bunch of Vanguard views. If you want to upload images, take 5 screenshots from your client in similar areas to the ones uploaded and put them in a new gallery row with notes about the rank. But only if they're VERY different - otherwise, just add a note like "this doesn't show up as a Defender Elite, but X does instead" and so on.
If you can't see em, try "recent changes" on the left - shows stuff for entire wiki, and the uploads should register there. Or try viewing the most recent change via History on the page itself. Should show up!
Yes, it would be good to have the location of the Denizens as they are "unlocked"/appear - I've put an example with Pakrat, but he's got ??? for now. I'm not sure which mission he shows up after - if I had to guess, it would be "Built to Destroy!" based on his dialogue.
Oh, there's quite a lot to update! However, we need to be careful about this:
Patch notes 2014-05-21 (Node 101027 in the forums) say that the Laboratory in Haven changes its appearance based on what missions you've completed.
Yes, several things need updating, thanks for the notice!
P.S. - Never be afraid to help the wiki! If you blow it up, an editor can just restore a previous version via the History :)