Online retailer Play.com has leaked four high-profile unannounced titles for Sony's handheld, according to Eurogamer.
Grand Theft Auto: Vice City Nights, Monster Hunter Portable 3, Tales of Innocence R and Final Fantasy Type-0 HD were listed for pre-order on the website before being taken offline.
Vice City Nights is expected to be a new version of PSP title Vice City Stories, while Monster Hunter Portable 3 will finally confirm the arrival of the role-playing franchise, one of the highest-selling in Japan, for the platform.
The games are expected to be confirmed during Sony's Game Heaven event this Friday (March 9), which will announce a number of new games for Vita.
PlayStation Vita launched in Europe and North America last month, and has since sold over 1.2 million units.
Analysts have estimated that the console could go on to record 12.4 million global sales before the end of 2012, providing a price drop is introduced.
> PS Vita launch guide: All you need to know about the new PlayStation
> Read our ongoing PlayStation Vita coverage
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