UPDATE (JULY 7) some more info including cost via DX-World advertiser, WIMO 

JULY 6, 2022 – Social media awash with news today that YAESU is about to introduce a new transceiver – the FT-710. It will cover 160-6m with 100w output.

Note: The FT-710M and FT-710S are the 50 and 10 watt versions of this new radio. Scheduled to be released in late August, the price is still unknown. Late August coincides with the Tokyo Ham Radio Fair

See here for more tech info (currently in Japanese). Weight: 4.5kg.