Hello. Hi. Now that that's over with, might I ask how experienced you are in this sort of stuff? You can't make a game out of the blue. It takes time and effort, and you have to know what you're doing.
For starters, the title. We already have a actual LEGO Island 3 that you mentioned in your blog. You know, Island Xtreme Stunts. Third LEGO Island game, files still call it LI3. Plus that horrible fangame that is also called Lego Island 3 (note the lack of proper capitalization). This aside, LEGO Island 4 would not work either, as you do not own LEGO Island. Your game would not be an actual fourth installment in the franchise. It would be a fan game, and does not deserve to have such a misleading title.
Speaking of not owning it. In the comments of your blog you said that, unlike that OTHER fan game, this would cost $36.00. Terrible pricing aside, you can not do this. You do not own the LEGO Island franchise, or LEGO. You do not have a license with LEGO to produce this for a profit. If you did, you would no be 12, you would not be doing this alone. Simply put, you can not do this for a profit, as you are using the LEGO brand without permission. The other fan game was non-profit because that is all that you are allowed to do. Try making money off of that thing, and LEGO will be on you like studs on a brick. Not developing the franchise is not the same thing as not having copyright - the Island series may not be trademarked any more, but the LEGO logo sure is.
Besides, a CD-ROM? This isn't 2002. If you want this to be as big and fantastic as the LEGO Island games (the third of which barely fit on the disc), you're going to need a bigger medium than that. I mean, you predict this will take eleven years to make - it better be good. And, since this will be non-profit, good luck buying enough CDs/DVDs.
And er, going by your story outline
Not to sound rude (I probably will anyway), but your age sort of shows a bit. You may want to get your programming done first and let your story grow and change for a few months or years, so that you will have had time to sort it out better and not use memes in it.
Besides,
That certainly isn't a difficult achievement.
Anyway, welcome to RRU. Now that I've written my longest intro reply ever, I need sleep.
Edit:
We can click on your user name. We know how to get to your profile.