This can be called "in progress" only to the extent that I've just begun. It's supposed to a "an actually
really realistic Planetos". Because for all his supposed realism, Martin's world-building is shit and his continents make no sense. The part up there in the middle is a sketch for a revised Westeros, keeping its general shape, but re-orienting some things to make it all a bit more logical. The other continents are, at this point, but the very roughest of outlines. But at least the positioning makes sense: I've actually worked out all the tectonic plates,
and the ways they inter-act.
As you can see, there are six major contiguous land-masses -- which most people in-universe would probably describe as nine continents -- but there are actually thirteen tectonic plates. And the ridiculous way Westeros looks is explained by the fact that it's actually made up out of two small tectonic plates, wedged in between the area North of the Wall (actually an outcropping of one of the two Arctic plates) and Dorne (actually a promontory of the Sothoryos plate). Westeros and Essos used to be united, but the
other Arctic plate pushing South while the Sothoryos plate pushes North has wedged the two apart -- creating the Narrow Sea. (Oh, and the Valyrio-Ghiscari plate is also a separate thing, being pushed into the Essosi plate by the Sothoryos plate's Northward drift. The fact that the small Valyrio-Ghiscari plate is wedged between two larger plates has resulted in some serious volcanism. The destruction of Valyria involved the eruption of a Yellowstone-like supervolcano.
Anyway, this obviously still needs endless amounts of work, but it's a start.