TV's Frink said:

Donations, cash or otherwise, are and should be no strings attached. If you can't handle not knowing the end date, don't donate.

Due to the volunteer nature of this project meaning that real life comes before the edit ^this^ is exactly how donators should understand things (and for the most part they do....there have only been one or two instances of people thinking that they had greater rights to answers about release dates than non-donators).

If we were being paid to work on this (which can never happen, but IF) then we would probably already have deadlines and schedules.....but that simply isn't the nature of this particular beast.