You can't know if you don't try,if small IP is doing well big IP could also doing well
I don't really see many "big IP" options for the Vita which make sense at this point. I suppose the ones which make the most sense and would probably be successful and not very risky would be a Gundam Extreme Versus port. The PSP and PS3 versions of the series were very popular, and being a multiplayer-centric game, it would fit perfectly with the Vita's userbase.
Aside from that, I'm not seeing many options:
- Square Enix stuff are probably off the table because they're having so much trouble just developing FFXV and KH3 as it is. There's definitely no internal manpower left for stuff which were very successful on the PSP previously like Dissidia, Birth by Sleep, Crisis Core, and Type-0.
- Resident Evil is probably also off the table because Capcom didn't like the results it had on the 3DS - a much more successful portable platform.
- Yakuza never performed as well as the PS3 titles on the PSP, and if they weren't willing to invest in a full proper game on the PSP, I don't see them doing one for the Vita. They probably don't think spinoffs are worthwhile at this point either.
- Monster Hunter is locked on the 3DS right now as far as proper sequels go, since that's where they moved the fanbase to.
- Metal Gear Solid is another series which probably doesn't make sense due to development resources. Peace Walker sold really well because Kojima was driving the development personally, but with MGS5 there isn't going to be time for distractions.
- Tales is another series which will probably stay on consoles from now on given how they've rediscovered where the fanbase really wants their proper Tales games.
There simply aren't that many "big IPs" in Japan these days when we're looking at third party stuff for Sony platforms.
There is a lot of other ip bigger then God Eater,it's a big IP on Vita but not but not compared to other IP not in Vita
Not really. At least not on Sony platforms. God Eater sold 617k. That's a huge IP in Japan on Sony platforms these days. It's the 13th best selling PSP game of all time, and if those were PS3 numbers it would have been the 8th best selling PS3 game of all time.