a couple of comments... not that i know more than anyoone else (probably much less) but... I don't think the missing qasalan tablet in the TCG deck is anything but a coincidence because of a misspelling. It's not "gone" it's just got a faulty url. If I remember correctly, the url ended with something like C110, but all other cards have CI - if you change the first 1 to an I you'll see the card.

Second, some people have commented about the different shapes of the missing pieces and them having different numbers and that this might mean something. Again, I don't think it's important: it's probably just a way to make the tablet more varied - after all there are at least 12 symbols and we all seem to miss about 8 or so pieces, so why would there only be three really missing?

anyhow... I think we'll probably need to wait for more plot parts and stuff to be able to make more sense out of it...