I don't think the way some stuff are placed like the current interface (lobby) should change alot, if you move around stuff it will become super ugly and people dislike big changes in general.
A replay function on the log-in screen ( what I said along time ago ) is a good thing for people who are banned, and for people who aren't banned so I think that should be the priority since it's for more people.
Everything that should change should only change the way of how easy it is to choose a certain thing.
Example: The current shop is amazing, -> Melee -> Dagger - you can instantly choose what you want without searching.
Things like this are what makes people happy.