PGW is closer to PSX than GC is to E3. If we are getting PGW again this year then you can bet PSX is not going to be anything spectacular.
There are definitely smaller titles still coming to PS4. MediEvil being unveiled at GC/ PGW makes sense. But I wouldnt be surprised if is kept for PSX depending on other announcements. ND may have the capacity for 2 teams but they wont. At best you will see an offshoot group make lie a Lost Legacy.
Its just as likely that the new team works with the existing San Diego studio.
Anyhow, Sony still has the initiative in China so I think its at lest possible you see them try promote that stuff outside of China. But it depends if they will publish these games for an international market. Maybe PSX is where they are shown.
china is already a bigger market than japan despite the low console sales
japan doesn't buy western games. china does. GOW shipped like twice as many in china