My twins, now almost 21 months, have gradually dropped a nursing session here and there during the day. They still like to nurse before bedtime, although I think that is more about some snuggle time than about being hungry.
You may find that over the next several months your baby does the same thing -- gets more and more full from food and wants to nurse less and less.
I think I could wean my girls now but I am realizing how much I would miss it! But we skip a night here and there and they are OK with that -- I am too, for the most part.
I felt much the same way as you: that I would keep an open mind about long-term nursing. And while in some ways I will be glad when we are finished, I absolutely have no regrets or doubts that keeping on nursing has been the right thing for all of us!