Bitcoin needs to improve the time for completing the confirmation so the transaction doesn't need to wait for a long time.
Most of the people who are involved in bicoin wants to improved the transaction because sometimes it takes time to complete the transaction.
Also the security of the bitcoin, I already had experienced hacking my account also lost my saving in btc.
This is just some of the pointers that needs to be improved so that all the hardworks will not just go for nothing.