I can't predict the future either, but always have an opinion....I will offer this -
The big construction booms coincided with big economic booms that hit about every 20 years (20's, 50's, 70's and 90's I think we will skip the 10's not unlike the 30's. Historically within those 20 year cycles there have also been mini construction spikes of construction on about 7 year cycles. So, I think we will see a mini spike around 2015, based on the 2008 collapse.
I also think that just like the housing markets probably going to smaller, more environmental homes to meet a less affluent target market, golf courses will change. Specifically, more housing courses will be built within active senior communities, meaning there will be no 7600 yard back tees and most, but not all, will be easier designs rather than courses trying to please everyone, or attract national attention by being tournament ready with no tournaments to play on them. The era will more likely mirror the 50's than the 90's and perhaps by definition, designs may not be as good because for most, cost, ease of play, etc. will be a very targeted focus.
Just my take.