bitcoin in the future no one will know how bitcoin develops but you can see from the total bitcoin supply that from year to year the supply is increasingly limited and it is increasingly difficult to get bitcoin and usually if there is such an influence and demand is also high then the price can become very expensive.
One thing is for sure, Bitcoin will have major development. Probably it will be upgraded to be quantum computer proof. Lightning network will be at its best , scaling large volume of bitcoin transaction thinking that Bitcoin will be main stream and being used as alternative currency by that time. Price, it is kinda hard to speculate but I have a feeling that it will be several times higher than the price today.
Similarly one big change in its legality over the globe can too affect Bitcoin in same way.
The changes in legality is happening right now. By that time (after 10 years) I think Bitcoin standards are already set so there will be no problem in terms of acquiring and trading Bitcoin except if we do not have fund of course/
