Hey, everyone! I'm planning a trip with my group of friends for late October and I've been reading up on a lot of WDW stuff. We already decided dates, staying at AoA, bought some plane tickets and waiting for the rest to make our reservations 
I'm aware of FP+, ADR, MBs and all that stuff but I have some questions. Sorry that there are a lot! I e-mailed Disney directly for some of them but I'd like to see if someone has a better response.
1. When can I see park hours for October/November 2014?
2. When can I see the dates for the Halloween Party for those same months?
3. If I book FP+ for a park 60 days in advance but later decide to visit another park that day (before even getting to WDW), can I reschedule them or once I choose attractions from a park I'm stuck with it?
Now, for booking... I'll be using the Disney website and since we're a party of 5 (at the moment) I'm thinking of booking a Lion King Suite. I book, pay the deposit and some of the balance and then my 5th friend cancels... let's say this happens next month, giving me a looot of time to deal with it.
And now, let's say the reverse happens. We're a party of 4 and I book a Little Mermaid room. Paid deposit, paid some of the balance and now a 5th friend wants in.
4. What happens there? Can I call Disney and ask them to add/remove someone from my reservation and upgrade/downgrade the room to fit our needs? What happens to the deposit/balance we already payed? Does that get transferred to a new reservation, refunded or...?
This is for international guests who have used the Magical Express at MCO:
5. Were you able to add your departing from/to airport when scheduling Magical Express through the website? My originating airport doesn't show up (just US and Canada airports) so I can't put in my flight info. I'm guessing I have to call Disney directly to add it?
And last but not least... Memory Maker! I've seen some confusing stuff about it so I'll ask, heh.
Let's say my friends and I book 2 Little Mermaid Rooms. I book one and another friend books the other. I pay for Memory Maker but the other room doesn't. The other room has a person with a MDE account and we added and enabled each other to see our pictures and gave permissions for plans and whatnot.
6. Can they (people staying in the other room) scan their MB to get pictures added to my Memory Maker? Or would they have to get a PhotoPass card, give me the code at the end of the trip and then I'd have to add it to my MM?
I'm asking because everyone always mentions families and linked reservations but we're all friends, no one's married, no kids and we all have different last names so nothing's linked except our MDE accounts.
7. And speaking of linked accounts... This enables us to change FP+ for everyone, right? Same scenario as before. Just link to my friend's MDE account and I should be able to select his and everyone staying at his room's FP+?
Thank you in advance to whoever takes the time to answer all of this
there's just so much to plan...

I'm aware of FP+, ADR, MBs and all that stuff but I have some questions. Sorry that there are a lot! I e-mailed Disney directly for some of them but I'd like to see if someone has a better response.
1. When can I see park hours for October/November 2014?
2. When can I see the dates for the Halloween Party for those same months?
3. If I book FP+ for a park 60 days in advance but later decide to visit another park that day (before even getting to WDW), can I reschedule them or once I choose attractions from a park I'm stuck with it?
Now, for booking... I'll be using the Disney website and since we're a party of 5 (at the moment) I'm thinking of booking a Lion King Suite. I book, pay the deposit and some of the balance and then my 5th friend cancels... let's say this happens next month, giving me a looot of time to deal with it.
And now, let's say the reverse happens. We're a party of 4 and I book a Little Mermaid room. Paid deposit, paid some of the balance and now a 5th friend wants in.
4. What happens there? Can I call Disney and ask them to add/remove someone from my reservation and upgrade/downgrade the room to fit our needs? What happens to the deposit/balance we already payed? Does that get transferred to a new reservation, refunded or...?
This is for international guests who have used the Magical Express at MCO:
5. Were you able to add your departing from/to airport when scheduling Magical Express through the website? My originating airport doesn't show up (just US and Canada airports) so I can't put in my flight info. I'm guessing I have to call Disney directly to add it?
And last but not least... Memory Maker! I've seen some confusing stuff about it so I'll ask, heh.
Let's say my friends and I book 2 Little Mermaid Rooms. I book one and another friend books the other. I pay for Memory Maker but the other room doesn't. The other room has a person with a MDE account and we added and enabled each other to see our pictures and gave permissions for plans and whatnot.
6. Can they (people staying in the other room) scan their MB to get pictures added to my Memory Maker? Or would they have to get a PhotoPass card, give me the code at the end of the trip and then I'd have to add it to my MM?
I'm asking because everyone always mentions families and linked reservations but we're all friends, no one's married, no kids and we all have different last names so nothing's linked except our MDE accounts.
7. And speaking of linked accounts... This enables us to change FP+ for everyone, right? Same scenario as before. Just link to my friend's MDE account and I should be able to select his and everyone staying at his room's FP+?
Thank you in advance to whoever takes the time to answer all of this
there's just so much to plan...