It is still impossible to say what the value of Bitcoin will be after 10 years. But we can guess and according to some experts, the value of Bitcoin may be close to 1 million after the next 10 years. This is only an idea or prediction. There is no specific source for this or there is no guarantee of it.
But it is certain that holding Bitcoin in the long term is still a good idea. Since Bitcoin is bullish in nature, it is almost certain that the value of Bitcoin will be higher than today's price in the long term and as a result of your investment, your money will be free from the effects of inflation and you will benefit many times over.