In 10 years? 90% to be ~$0-100. 10% to rise to ~$150k. Most likely countries like USA will punish people using BTC and it will be pretty much worthless.
USA has the most Bitcoin users in this world so I think that will not happen, and even if bitcoin was banned to this country, they will be finding ways to sell or buy bitcoin to be saved and use in other way that they will not be punished. What I hope in that 10 years is the development of bitcoin that it will not be having any problem like what is the issue today.
Probably 10 years from now, bitcoin would gain a lot of new members. Bitcoin economy is increasing and growing every single day, with this you can really say that it is progressing in reaching out the desired needs of the people. Yes, bitcoin is now powerful and more people might be interested in joining. 10 years from now, Bitcoin will prolly gain power and prosper as to what it is today.
Bitcoin is not the currency for US citizens and it will never happen what you mentioned here. In the next 10 years I guess that no one will be able in this forum to buy one bitcoin because the price is growing more and more with the passage of time and 10 years is a very big time for bitcoin to hold the worlds economy. I am sure that after 10 years everyone will use bitcoin for his daily expenses and for everything he needs in life.