Why do we keep dredging up old and worn out topics?
Bitcoin has gone beyond $500 USD, it's slipping back down to $720 USD because everything correcting the market, like has happened with every other rally so far, and it looks like the market might have one more rally left in itself before the halving, if investors are willing to take the risk.
The bitcoin price did go beyond $500. It went up to $780. But it came back to $550 again. It will go up again.
I think so. The bitcoin will have the SegWit to be implement in the next Core release and it was under good test recently.