You should probably get Diablo 3: Ultimate Edition on disc
Diablo 3: Ultimate Evil Edition is not download friendly on the European PlayStation Network. At all.
Diablo 3: Ultimate Edition certainly isn't a small game, packing in the core Diablo 3 release with the Reaper of Souls expansion, but the download size for the European PS4 version is jaw-dropping, coming in at 62.7 GB.
This size only applies to the European storefront; in the US and Australia, the filesize is shown as 26.1 GB.
Presumably, the extra data is localisation materials - voice acting and text - for multiple European languages. Which, wow, apparently more than doubles the size of the game.
In either case, it's significantly larger than the Mac and PC client, which calls for 12GB of HDD space.
It's also a huge jump from last-gen install size, too. On PlayStation 3, Diablo 3 was 8.6 GB if downloaded, and around about a 6GB install from disc. The Xbox 360 version was a similar size. I guess the new version is, uh, really pretty? With lots of resource-intensive textures? Or something? Gosh.
Diablo 3: Ultimate Edition lands on PS4 and Xbox One on August 19, and while we'd happily recommend giving it a go if you haven't checked out how well it works on a control pad yet, we'd suggest trotting down to your bricks and mortar for it.
I wasn't able to find the Xbox One client size from my local storefront (and my Xbox One is packed away for moving) so I can't verify the size of either the European or English-only version. If you can check, I'd be keen to know.
Thanks, NeoGAF.