More from Capcom, CC2, several more from SE (all console, and not remasters), a couple things from L5, some stuff from Sega, and something from Namco Bandai (unrelated to the obvious games that are always exclusive to Sony platforms). That's some of your important "collaborations" (or unofficial assisted efforts) over the coming years. A lot of the current announcements that have taken place have been in the works for a long time, so they're not really tied to PS4s success. (It just takes a while for things to start happening, because you have to juggle available resource, timing, and other factors. It's like moving an elephant at times.) Although, that obviously will help moving forward, particularly with western efforts in terms of publisher deals, marketing, and blah blah blah. The effect of this is probably a little different from what most people imagine.
Collaborations make sense from a resource perspective, and for SCEJ/A in particular, due to the nature of those markets, and the unique challenges they face. You have to do the work, negotiate, and gain others confidence to invest with you. It's fair to say PS4 will be the platform where you'll have the opportunity to play most of the notable Japanese third party franchises, including some forgotten, some that have been away for a while, and some new ones being created. Most of the notable announcements are yet to come. These are your appetisers basically (except SFV since that's a big deal).
But really, what matters is the quality of the games from a fan perspective. It's nice to have a lot of interesting games eventually be announced, but if they don't deliver, it'd probably be more disheartening for most folks, since you came close to almost getting what you want, but ultimately didn't. (Which I imagine are good or great games rather than mediocre stuff you'll forget.)
Also, SO5 is going to be crap. It's a good for several reasons from a business point of view, but it's still going to be crap. Kind of harsh, but it's true. I saw those videos of the last one. I know what it did to people.