I'm going to say commemoration as the possibility. Commercialization would minimize the respect for those who perished, so I have my doubts anyone would actually try that. Re-examining through politics would be interesting, but what's done has been done for 150 years....interpret all you want, but its over. I've a feeling that would only create bickering of sides....far from unity. Education...I could see it, but not everyone really pays attention to this stuff, so it would inspire history buffs such as yourself, but the common folk will probably go about their daily lives. Celebration, like commercialization I feel is the wrong way to go as it was far from "lets all work together now" at the end of the war, and old feelings do die hard, especially if you had relatives on the side that lost.
My two pennies.