It seems that SEGA will announce a new game in the series Yakuza al TGS 2020 Online il 27 September 2020. The information comes from a tweet, now canceled, by Sega host Ayana Tsubaki.
Here's what Ayana Tsubaki's deleted tweet said:
“A new title in the Yakuza series will finally be announced in SegaNama during the Sega Atlus broadcast the day after tomorrow, so don't miss it. It's like a dream, I'll be there !! "
Looking at Sega Atlus' online program related to TGS 2020 we know that there is indeed a live stream scheduled for September 27, 2020, starting at 20:00 JST (13:00 in Italy).
The series has reached its eighth chapter, Yakuza: Like a Dragon, which features an RPG combat system unlike previous titles, plus action.