Hehe. They are planning to implement more than you think :) It is just going to take time. I'm sure there will be some ideas that the dev team will decide to reject for various reasons, but I think a lot of them are ones the will accept/use. Prioritization / deciding which ones to do first is their main thing right now.
RE: The Steemit Wish List - Avatars, Notifications, Multi-Language Support, and More - Oh, My! (v2.0)