This is a little late but I spotted this tweet from Espressif and a post on CNX about a new variation of the ESP8266 going into beta testing. The company announced the new chip which will support both Wi-Fi and Bluetooth Low Energy (BLE).
There’s not much more information other than it features a new 32-bit core, the Tensilica diamond 108 instead of the 106 and has 500KB of RAM.
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