Bitcoin has accomplished a lot over the last few years and deserves a lot of credit for it but has not achieved its goal yet. Bitcoin is set to achieve global protection whereby everyone will accept its use in terms of payment methods and apply it to their business and transactions.
Yes, Bitcoin is not yet in its final form yet. There are still lots of improvement rooms remaining on Bitcoin that has not been discovered yet. Who knows in later year we could see something really revolutionary on Bitcoin that could change the entire path of Bitcoin and Bitcoin will be used in so many different factors later on so yeah, we can expect something good later.