We're all guessing.
What I like though is how many BTC are naturally/inherently lost forever and its effect on the supply side. Just from my own experience, how many people simply leave small amounts of btc in wallets they abandon or forget about? From Mt. Gox to Xapo, to BTC-e, to that wallet you helped set up for Grandma or your kids and put $10 in it and then they lost interest or deleted the app or threw away their paper wallet.... And then pile on all of the illegal stuff people are using it for and how much of it is either seized or lost because the owner dies.
What I don't like is that again, it's just tech. It seems and has been unhackable until now, but I can't help but think about how fast everything progresses and becomes obsolete. Makes me think of the final sequence self destruct code from Star Trek II The Wrath of Khan.... Code zero zero zero. Destruct. Zero. Seemed like secure enough code to me when I was seven years old. ????