Well the waiting list really was more of a time list...they hadnt opened the 2013 dates to reserve, so the list was basically "waiting" for that to be released. If it does come back as an issue (the day you pick) then i would suggest choosing a day during the week. Even though these are destination weddings, it seems that most brides still pick Saturday to get married. I chose a thursday in June of 2013 and had no problem whatsoever, even being able to get confirmation on the reception location.
Also keep in mind the regular Barcelo is Adults ONLY.
I booked the tangerine because i knew we were going to have atleast 35 people coming and didnt want to worry about upgrading everything (cake, chairs, etc). As long as you are changing to a higher upgrade (say from strawberry to tangerine) im sure they dont care...it would be going down that they may not be okay with.
I dont have marlene's direct email address as I have a wonderful TA who does all the communicating. I have seen on here that many are paying deposits for the rooms to be blocked off, but I have not had to do that. I just have my guests contact my TA and they get their room reservation through her and make their own room deposit at that time, and then have until next april to pay the remaining balance. (This does not include flight).
The best way to know how many rooms to block off if that is the path you want to go is talk to alot of the guests you are inviting. I sent out an email to family members and close friends before we decided to do this to see how many were in, were maybes or just would not be able to attend. This helped me budget, chose the place, and know if it was even a right decision for us. My list of maybes is still longer then my no's and yes's, but like i said i am having my guests make their reservations whenever they are financially able to do so, so I wont have a for sure answer probably till next year and that is not a worry so far. When it comes time to start ordering OOT bags and gifts and things, thats when it might be a pain.
Hope this helped a little!