As you know, Lynn has decided to try to make the new-runs "timeless" by removing things that might tie the strip down to a specific time period. This is why John's sidebuens and plaid pants have joined typewriters in the blue bin of Foob history. This tells me that she also has to eventually remove all references to such things as Jim's service in the Second World War or, as howtheduck reminded me, Elizabeth's attendance of the long-vanished Grade 13. We'll be told that Jim was in the military at one point and that's where he met Marian but we won't have anything that ties the new strip to real history. Instead, they'll exist in their own private little bubble of time with no connection to reality.