Battery day for investors will supposedly show off cells that will experience only ~10% degradation over 1 million miles of wear (roughly 83 years of driving the average 12k miles/year an American drives), while also removing as much conflict cobalt as possible from the cell chemistry. Their autobidder software used at the Hornsdale Power Reserve for utility scale storage is in the process of being extended to allow Tesla to act as a virtual utility in the UK. Components of this are used in Sweden to provide Tesla owners with low cost power to charge their vehicles based on market pricing signals from the utility (charge when the cost of electricity is low or negative).

Exciting times.