Considering that without Japan, Sony sold 105+ Million units of PS4â€™s and more than 1.4 BILLION games, itâ€™s clear that their focus is not Japan anymore.
Japanese market it's not only the Japanese market.
Sony has an ok run there with Ps4 because all third-party AAA/AA is on Ps4, and 3ds ( japan only) and WiiU( biggest mainline Nintendo flop) don't represent much competition. Now we have the Switch dominance and the loss of a big chunk of AA production, and some unusual comeback (Konami). The second biggest market has an influence on all East Asia markets. Look at Taiwan and South Korea tracks now... resembles the Japanese market( South Korea is a Nintendo more version of this). Continental China Nintendo has more than 4 million sales there.
I believe Sony will grow in India. but lose some chunks of East Asia.