I think their motivation continues being the same as always:
- Contribute to the brand image of PlayStation prodiving prestige games
- Give players confidence that PlayStation will have at least certain amount of great games every generation/year
- Showcase the possibilities of the PlayStation consoles to the other devs and the players
- To generate revenue and profit for SIE/Sony to keep the machine pumping
This generation they took many big risks regarding first party:
- Spent a record amount in acquisitions
- Highly grew most of their internal teams to record number of manpower
- Increased the amount of first party games developed at the same time to record numbers (over 25)
- Increased the number of new IPs to around half of games under development at the same time (over a dozen new IPs at the same time)
- Almost doubled the budget of AAA to record numbers (same as the rest of other AAA publishers) compared to previous generation
- Highly increased their investment on PC releases to new record numbers
- Increased/started their investment on rival console releases to new record numbers
- Highly increased their investment on mobile gaming releases to new record numbers
- Highly increased their investment on multiplayer releases to new record numbers
- Highly increased their investment on GaaS releases to new record numbers
- Highly increased their investment on off-gaming adaptations (movies, tv shows, anime) to new record numbers
- Expanded their first party catalog to several genres/subgenres where their first party catalog was weak
- Made a record investment in second party projects for the generation
- Invested in places like Unreal Engine/Epic, Devolver, FromSoft, Kadokawa, Bandai Namco
- Signed strategical deals with From Soft, Kadokawa, Kadokawa+CyGames, Bandai Namco+Gaudiy, Koei Tecmo+Akatsuki, Netease, NC Soft..., many of them related to future expansion to let them bring Sony IPs to mobile gaming
- Expanded their 2nd party Asian games to games being developed only in Japan to games also developed in other countries like South Korea (Stellar Blade) or China (Lost Soul Aside plus other upcoming China Hero Project titles to be published by them)
- Licensed a third party publisher use old, unused, low selling IPs (licensed 3 to Bandai Namco)
- Started to allow indies use their top IPs (Lego Horizon, GoW Sons of Sparta and I assume more coming)
- Also published other small experimental games from other external small teams (Firewall Ultra, Destruction AllStars, Midnight Murder Club...)
They aprox. doubled their first party revenue versus a generation ago, so very likely will double down in all these growth channels / risky stuff. Investing the same on more in most of them, and also taking additional risks / investing in more potential growth channels