-Lower Total # of coins and halving time
-Change GUI in QT
-Add Chat into Client
-Develop an API system for merchants
-CSC - USD estimator in wallet
Don't spend too much time on the GUI or chat...those aren't needed or important at this point. Definitely don't do what worldcoin did to their GUi...it's horrid.
I feel the most important item for any coin is a merchant service such as coinbase....hard to do.
Concentrate on nailing the coin distribution....making sure it's done correctly as a wrong move can make or break a coin. The fact that it is changing at all is kind of a negative so the benefits better outweigh the loss of credibility that is being created IMO. One excuse to changing the distribution is that the original specs were not done correctly...I can't comment on that since I don't know enough to say if they were or weren't.