I didn't find anything historic about it or even relevant. The other side over estimated their chances at a recall and the vote went down pretty much the same as the first one, except they managed to annoy a few more people who gave the incumbent a few extra votes.
The only reason this got as much press coverage as it did was it's a slow news year, and the absurdity of it all. I mean, it's not like Walker didn't spell out what his plans were when he was running in the first place. I'm not sure why everyone was so surprised he actually did it. (I guess a politician who does what he says during his campaign is kind of rare these days)
Wisconsin was a relatively gun friendly state to begin with, this isn't going to have any effect on the states that aren't. This fight was never about gun rights, it was about unions. Will this effect how some states deal with unions, probably. But since it was never about gun rights, it's a non issue.