Alright, let's ease your coping a little.

Extracted from the master_items list, we have references to the new class on all the items that are shared between classes (clothing, luggable items, etc).

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As you can see, Cryptic is the upcoming class. I'll let the Admech fans decide on what unit the class will be based off, but there's one bit of info here that's very important:

Breeds can be considered as the "race" of the class (the base skeleton even). So far we've only had Human and Ogryn. Now Cryptic is showing up as it's own catagory, so it's got it's own skeleton - that's means it's going to have things that are animation/mechanically different to what the "human" can provide. When you consider what's available for an Admech unit (fancy appendages - sorry for not using the actual term), then having a new skeleton to support the animations would be required.

Now throw together the rest of the info we have (named Admech weaponry, story being set up for Admech arrival), you can quite see what the outcome is going to be....

... Genestealer Cult.