I was digging around in my old file folders and I found this ASB map involving the Roman Empire getting ISOTed to the modern day (more accurately, 2015.)
I think the map was set about a month after the ISOT. As I recall, the Czech Republic moved into Austria and ended up assimilating what was left of it, and Hungary did the same with Slovakia and what was left of the Balkan nations, as well as the cut-off western part of Romania. The eastern bit of Romania and Moldova joined together in fear of being taken over. After the Romans carved themselves a path to the Caspian, the Russians convinced the rest of the nations in the Caucasus to join with them for protection (those that didn't join were taken over for the purposes of "ensuring a more easily defensible border" with the Romans). Russia outright annexed what it had taken from Ukraine so far, in addition to a little bit more, and it also assimilated Belarus and Lithuania. (I think I was just sick of having Kaliningrad cut off, and I knew there was no way the Polish or Lithuanians were going to be able to take it, so into the Baltics with Russia!) I think that the only reason that the Romans hadn't already been taken over by the much more technologically-advanced surrounding nations was because of a lot of diplomacy, but I didn't write anything down for this and I made it more than a year ago.