I don't think they are in financial trouble....as I say and as we all know they sold over a billion dollars worth of property in the last ten years...both new complexes in US and UK will cost a fraction of that and will no doubt be very green and conservative buildings.
Every company, rich or poor is consolidating...with the recession over the last few years and things slowly picking up most companies are realizing that they had it good and now need to plan better for whatever the future holds.
I work for a publishing firm and the ongoing rise in costs in paper and other raw materials for publishing is really hitting our company...this will hit the WT too hence why they seem keen to go more digital....if they ever stop printing then there and then they cut enormous costs and surely they are sustainable for a long time yet.
Money is not an issue to the WT, the only issue they will have in the future is to convince people they are chosen by God given their insistence we have been in the last days since 1914....their teachings will be their downfall coupled with the internet and easily accessible information but their downfall will not come in any of our life times.