I must admit your ideas sound a bit different though I have to admit with your idea of seeing the portals on your mini map is a fairly good idea. I would enjoy seeing that happen, and would definitely see it easier for newer members to find places.
Though with your second idea of seeing other players that are not your friends on the mini map makes me believe that it would soon become too cluttered. So many dot, and unable to find your friends with ease I would find it to be a small bit of a booger.
Your third idea I would also not mind seeing happen. The tags would be a nice thing to see vanish as well, but we can also easily go in the options menu and solve that small issue ourselves. ^^
Also seeing Bonfire be a bit less laggy would be nice. If it grew some to eliminate the lag that would be wonderful. I know I would visit it a bit more often, but then again it s an island, and I would not expect the island to grow more.