Recently Cryptic published a brand new "Ask Cryptic" article where they answer several questions from anxious fans. One of the questions answered by the Lead Designer of Champions Online is how steep the leveling curse of CO levels will be.
"There will be a definite progression from low- to high-powered hero. Characters start off with a few starting powers and gain more powers and more customization options throughout the course of the game." – Arkayne, Lead Designer.
More raw numbers for the combat log is something they will add in, many different back options including capes, wings, horns, backpacks, jetpacks and more will be available.
A large amount of emotes is something the game will have and this will definitely add to the social factor.
Find out more information in the latest Ask Cryptic