Sony, legit doesn't have an extremely popular franchise that isn't currently still releasing new titles... at least I couldn't name you one.
Jak might be the closest to such a game, but even that... does the general public really care about Jak? I wonder.
Most of their older IPs that haven't seen a new game in recent years are only actually still popular among the niche that now is the core gaming crowd. so extremely popular are none of them.
Syphon Filter for example is a franchise 99% of video game players today would shrug their shoulders to when asked about it. same to a lesser degree with Jak, Twisted Metal or Wipeout. Sly Raccoon was a flop the last time they released one even tho the game was pretty decent too, neither of the Sly Raccoon games sold more than maybe a million each at best even when it was "still popular"
so which IP is left then?
like, name a single multi million seller outside of Jak that would actually be viable in today's landscape? I can't name a single game. by the second game Syphon Filter sold ridiculously low numbers already for example