I personally think bitcoin will increase but not expecting $5000 by this year without any big events. I think $5000 in 2018.
Its pumped super fast over the past weeks and doubled in under a month.
Assuming that happens again, or even if it pumps much slower I don't see why $5000 won't happen this year.
That's a big assumption. Bitcoin could be valued much higher already and probably would be if it were going to go up to $5,000 this year. I think this 3k price we recently reached was way too much about 2x the real value. $900-$1300 was where we left the ground. USDT manipulation and disallowing of withdraws on bitfinex and more.... caused a bunch of illogical market action that grew into exuberance and irrationality as new people came on board. Exchanges have become more comfortable with big risk because their users are carrying their huge risk burden by default.
I hope a bear makes a killing. These last 3 months have been fishy as hell and I know they like fish.