The Worldwide Fund is for the Worldwide Pedophile Defense Fund. What you are seeing is a batch of pledge forms toward the new project--I have seen a round of them when our Kingdumb Hell was built in 1996, and a previous batch in 1991 when it was proposed. You are supposed to commit a monthly amount for this purpose, on top of the amount you already donate. This is a separate fund, solely toward paying for the new Kingdumb Hell or the remodel, and not for the Worldwide Pedophile Defense Fund itself (though a new Kingdumb Hell is still a huge waste of money, especially if there is no problem with the existing one).
You will be asked to commit a monthly amount, plus any one-time "gifts(??)", toward this project. Of course, if you commit and circumstances deteriorate, you will still be held to the original amount under a guilt trip that you promised the original amount. If circumstances improve, you will be hounded to take "advantage" of it and donate more--though with the depression the economy is in, that is not very likely (and especially with the witlesses and their crap jobs).
If you do not fill in the amount, you will be hounded and harassed. Once (in 1996), I told them that I would have to take mine home and fill it out there--they wanted it filled in at the book study. Wherein I "forgot" my slip at home (on purpose), they shoved another one in my face and expected me to fill it in right in front of the hounders to see if I was going to be too cheap (or if I could be guilted into a nice big sum, and then held to it). I simply told them that, unless they backed off, I was going to simply take a red pen and put a big fat goose egg in the blank, and hold myself to that. I took the slip home and missed the next few boasting sessions, of course "forgetting" it again next time.
I would not commit anything. Circumstances can deteriorate, and you might need the money yourself (never trust in that Almighty Lowlife Scumbag Jehovah--He would just as soon you be destitute and Himself wealthy). And, whatever you do donate is going to waste--for sure, ask what value you are actually going to get out of the new project. If you are going to get zero value out of it, you should donate zero. If you donate more than you stand to get value, you are doing something bad for yourself (wasting your money), and for society (making it easier for the witlesses to grow in the community). And, I would not donate if they hound you, especially if they hound you more than once.