There's lots in store.
The rise of Bitcoin businesses that we have not even thought of. Just like the internet has brought Facebook, twitter, web 1.0 and web 2.0 when Bitcoin is adopted by the masses new forms of economic activity will be created. Some of them we can't even imagine and may only be possible because of Bitcoin. I believe what is next is amazing.
This ^, ease for Grandma, the swarm client for bandwidth concerns, ultimate blockchain compression for disk/cpu concerns, Casascius' super-simple mixing for anonymity concerns, initially slow, inexorable climb in value, then snowballing adoption as the Euro and dollar diminish. Eventually, Mike Hearn's blockchain-based bonds, or what have you. It's a bright, bright future.
We're incredibly lucky to be here to witness these early days. We're surrounded by bright people with diverse talents. There is room for growth in so many dimensions.
And let's not forget that we're about to pass through the First Great Halving. One day you can tell your Grand kids how you remember when a bitcoin block was rewarded with 50,000,000 microbits, and you were there the day it dropped to 25,000,000.
Lots in store. Enjoy the ride.