I have 3 newsletters. The first (one year out) was an explination of the wedding itself, where we're having it with a picture, a brief please join us, a write up on our 2 suggested hotels with pictures, suggested dates to go, explination of my way tickets, and contact info for both of us. The second (9 months out) had TONS, magical express, money saving tips (like sharing a double cheese burger and getting a second bun for 80 cents), general climate info, time saving tips (like fast pass), priority seating, cheap and free things you can do (going to the campfire at fort wilderness), also I had kids activities (babysitting info, pirate cruise, tea, etc...), and I did a page on Christmas activites (since we'll be there in December). The third (2-3 months out) will have a list of closed attractions, park hours, who's going and where they're staying, suggested packing list, and weather info reminding them that it can get cold at night so bring coats. PM me if you want any of this info I'd be more than happy to send it. Hope this helps you.
Melissa