I've already talked about what this would mean, if it were to happen, but that was then, when it was only possible, and this is now, when it's actually happened. Claudio Ranieri really has won a title, Jamie Vardy has worked his way up from non-league to owning a champion's medal, and a deeply unfancied team has gone on to win the Premier League and upset the natural order of top-flight English football.
Of course, I don't want to get too swept away here. Chelsea and Manchester City are going to invest heavily after their respective train-wrecks, and Leicester themselves are going to have to deal with yet another competition to sap their focus - the Champions League.
If Manchester City and Chelsea have screwed the pooch this season, the likes of Juventus, Barcelona and Bayern Munich haven't had similar stumbles. Or rather, they have, in that Juve had a shitty start to their season (but then embarked on a ridiculous unbeaten streak to win Serie A) and Barcelona won't be able to confirm their champion status until the final day. But you take my point.
Still, I also don't want to be too gloomy. It will be interesting to see how Leicester gets on against the very best of Europe, having earned their right to be there. If they can keep the core of their team together (and why shouldn't they? Riyad Mahrez or Jamie Vardy or N'Golo Kanté don't need to move anywhere else to find Champions League football), they can at least have a good go at it. If Barcelona or Real Madrid beat them, they'll still have made it to the party.
The other question will be how Leicester get on in the Premier League next season. There'll be a lot of teams gunning for them, and they'll be desperate to strengthen. It'll just be harder for Leicester to repeat this year's achievement - but on the other hand, it'd be boring if they did (and I say this as a Juve fan who's hoping that the rest of Serie A can mount a challenge to my team).
Whatever happens next season, the importance of Leicester winning this season is incalculable: they've shown how other teams can do it. And now that the TV deal funds are trickling down to the mid-level clubs, it will be easier for other teams to do it.