Ok, so the highlights from the monthly Letter from the Producer are:

January's Awakening has been delayed due to issues with balancing / implementation. January's Awakened kamihime will be Light-element.
The team is working on improving the UI, especially load times and responsiveness.
The Accessory UI is being reworked so it's easier to switch loadouts from character to character.
They're working on improvements to the UI which will allow teams to be organized for Tower Quests more quickly and easily.
They're rebalancing some characters.