Anyway to repurchase ps3 digtal after upgrading to ps4 version.

[ShadowYomi]

I would be fully willing to repurchase it for the licence. Also if i were to re-buy the ps3 version for a different psn account could i still use it to log onto my ps4 account that has a different psn.

[Felis]

Only with the PSN account that is linked to the SE account

[MomomiMomi]

From my understanding:

If you've purchased it digitally before, you'll need to buy a version that you haven't purchased already. e.g., if you had standard PS3, you can still buy CE PS3.
If that's not available, you'll need a physical copy.
Each account is going to need its own license.