Right now, Bitcoin is very unstable so it would probably take another 4-5 years to really see an impact on it. Maybe the next year would be better, but nobody knows if it will be because crypto is unpredictable. Only time will tell if Bitcoin's price would reach $1000 and mainstream adoption 
Nothing to do $1000 and mainstream adoption. When bitcoin hit $1000 no one would be ready to spend it. Everyone will hold it for the price of $2000. So, Only after a very big price like one million dollar per one bitcoin, after holding that price for many years bitcoin may go for main stream adoption. Till that bitcoin would be a investment.
I suspect that you were not around when the bitcoin price hit $1000? There were loads of people selling at that threshold, since most people saw that as the turning point. There
were a few guys hyping for the Moon, but most people anticipated a drop after the $1000 price was reached. It was a crazy time and nobody knew about the Willybot at the time.
I also think, we will see a price increase in 2016 after the halving, but it will not go to $1000 just based on that...