If you are serious about the coin, which I assume you are, I offer a couple of suggestions:
Space out the airdrop, but provide some coins to Quebecers relatively soon. I'd say provide some coins within a month or two, then space it out every 6 months or so (until premine is gone). Arrange for some coins to go to local merchants, so long as they agree to take the coins back as payment for merchandise (or at least some merchandise).
Personally I think you may be bit a optimistic as far as public attention goes. Two years from now, I expect many existing cyrptos to be dead. By the time the first airdrop is supposed to occur, the coin may not even be around anymore.
I also think you should drop the IPO. It probably will cause more problems than it's worth. IPO pretty much spells scam to most people here, and then you include nation coin + premine... let's just say you'd do better without the IPO. Or at most, sell that maple syrup at close to cost, along with coins.
As you can see I'm open to suggestions and always ready to be my own critic. I'll be distributing coins in giveaways to radio-hosts, journalists and bloggers in Montréal to start. Québec is one big village, word spreads fast and everyone knows everyone. That's why I'm not afraid as far as public attention goes, people are genuinely interested in new things and ready to talk about it. You know someone on twitter who knows some blogger who knows a journalist who knows a radio announcer who knows a tv reporter. With the upcoming provincial election, there's a lot of room in Québec for talking... about Québec.
As far as the distribution of the premine goes, I'll definitely stick to the idea of delayed distribution. The delay time isn't as important as the fact that you have to put in a certain delay to gather interest and hype and avoid destroying the currencies value. Nation coins are very popular these days, that's for sure. The IPO is not out of greed and desire for profit. I already have a job and I'll be taking some time off without pay to dedicate myself to Québecoin, similar to Evan Duffield, although I don't know his financial situation. People can call it a scam if they want, it doesn't change that It's a mutually beneficial agreement. I get the resources necessary to develop and promote QBC for as much time as it can buy me, they get a nice return on their investment. Additionally, nation coins with their premine usually attract fair amounts of attention due to their large market caps.
One last thing - Québecoin is the best nation coin in existence on a technical level. The features are cutting edge and it will be a great coin to mine at release.
The maple syrup is really just an extra, I'm not in the maple business!