I've played the college of winterhold questline multiple times, and have always intended to go back into the ruin after the questline to see if the map changes. I never got around to it, though. Now, I have a different question. Surely, skyrim isn't the only place with powerful magic. I've never played other TES games, but I've heard something about a staff of chaos in arena or daggerfall, I know about red mountain from morrowind, I know about the oblivion gates, and so on. Shouldn't the Oculory show the locations of other magical artifacts throughout tamriel, despite whether or not we can actually go there? It's obvious where places like red mountain are, but still, shouldn't it be showing dots on the map? Also, Solstheim has Miraak doing that plan of his, with the all-maker stones. I'm sure the Thalmor have a few artifacts lying around Tamriel somewhere. The Synod apparently collects things, shouldn't those show up?
If the map DOES change after the quest line, that's awesome. If not, I don't really understand why. Also, sorry if I chose the wrong board to post on. This question goes a bit beyond skyrim, so I figured Lore Discussion fit best.