It tells nothing about the future. It only tells that the action has started in the past and continues into the present. But it can be changed. Here are some examples of how: I've been living here for 5 years and I like it so much that I plan on living here for another 10 years. I've been living here for 5 years, but I am planning to move somewhere else by the end of the year.

Hello, I agree with Joy. Use of this tense means that the action started at some point in the past and is continuing into the present time and the future. It is unknown how far into the future the action will continue. So, this tense does not indicate that you expect the action to finish in the future. With regards to reading a book, it is just implied that you will finish as the nature of books is that they don't last forever. Living in a place, on the other hand, could very well be indefinite and 'I've been living here for 5 years' does not tell us anything about when we expect the speaker to stop living in that place.

It does not imply anything about the future, in my opinion.

as what i understand, "I've been living here for 5 years" means that you lived there from the past, until now, at the present and maybe in the future so basically, if u say that, it emphasizes ur action "living" there for that period untill now