Thanks a lot for your patient mate. The most important problem we are dealing with is the stability of the whole sharding network. This is the main reason why we postponed to release testnet 3.0. But please trust us, we are focusing on it, and we have found the problem and we will fix it finally.
As you know, the totally sharding network is a pure decentralized network and the transmission between peer to peer will cost lots of resources, we need to reduce the cost and make the confirmation faster but safe. That is quite a challenging mission.
For sure, if anything changed, we will announce in social media and tell community in advance , thanks for your patient .