I'm pretty sure anything you've bought should be re-downloadable, I know cause I've got several games that have been de-listed. Korra for PS4, Marvel vs. Capcom 1 & 2 for PS3, Danganronpa for Vita, and several others, all downloadable for me despite being de-listed.
To my knowledge, the only things that can be completely taken away with no way to redownload is free stuff, such as demos. Biggest example I can think of is P.T.
That said, I still wouldn't trust Sony with digital purchases anymore. It's shitty that they wanted to close the PS3/Vita stores at all. If they do eventually close down, I'll assume it's only a matter of time before your ability to re-download games goes away too. And to think, they're trying to sell people a console with no disc drive.
I'm pretty sure anything you've bought should be re-downloadable, I know cause I've got several games that have been de-listed. Korra for PS4, Marvel vs. Capcom 1 & 2 for PS3, Danganronpa for Vita, and several others, all downloadable for me despite being de-listed.
To my knowledge, the only things that can be completely taken away with no way to redownload is free stuff, such as demos. Biggest example I can think of is P.T.
That said, I still wouldn't trust Sony with digital purchases anymore. It's shitty that they wanted to close the PS3/Vita stores at all. If they do eventually close down, I'll assume it's only a matter of time before you're ability to re-download games goes away too. And to think, they're trying to sell people a console with no disc drive.