We are currently working on upgrading the back-end to support the Twitch changes to chat. This is the highest priority as it would stop working as soon as Twitch switches off the old chat system.
Reworking the donation system is something that will be a high priority item after that. Being able to track aggregate donations and donations over time has been requested and will be part of that rework.
Cant give an estimate, but wanted to say that we hear you, and will work to get it to you as fast as we can.
Regards,
Experts