Same age as my lass. Old enough to count the days of the month, and if she has a Teakdoor Mendip Mutt Calendar she can cross the days off as they pass.
personally, I think that’s better than a surprise.
About 18 months ago I was separated from her (and the rest of the family) for 3 months and that was hard enough! I feel for you, but so pleased to see that the light is at the end of the tunnel!