At the moment consensus is that we won't see it.
Then again as hope dies last:
- there's games con in Germany this year where they could annouce it
- then there's TGS where Sega could annouce PS3 HD collection of VC2+3 or remastering of VC games for Vita
- some other company might pick it up and release in west
edit:
BTW if you are interested about VC3 I'd suggest dropping a question to sega twitter to show there's interest among gamers.
http://twitter.com/#!/ValkyriaTribune
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