Theory: Chemtech Tryndamere and Urgot
So it's quite obvious Chemtech Tryndamere is a nod toward the Urgod, but what if it is even more so than we think? My theory is that they showed Chemtech Tryndamere because Urgot is to be released sooner than we expected (maybe patch 7.13 or 7.14) and that skin is supposed to be released along side him. It would be a perfect, early teaser to say Urgot is coming. As far as I can tell, there's no release date for Chemtech Tryndamere and I'm pretty sure he's not already out, as I don't see him in the store. So if this theory holds up, I predict we'll see a teaser for Urgot by the end of this month or early next month.