Again, just because it's the first of April, doesn't mean every company is trolling. Maybe actually, again, check the source.
...what?
Listen, I know it sucks that XSEED lost the rights to translate 3, but NISA picking it up doesn't mean it didn't exist lol.
https://www.playstation.com/en-us/games/the-legend-of-heroes-trails-of-cold-steel-iii-ps4/
Maybe that's because it's...oh, I don't know, real?
https://twitter.com/NISAmerica/status/1245455902204977157
https://store.nisamerica.com/the-legend-of-heroes-trails-of-cold-steel-iv-limited-edition-ps4
Also, if you check the video in the OP, you'll see it's from the official PlayStation account. So, like, I guess PlayStation really got us all so good with their joking, yknow, about a small-time JRPG series that most westerners wouldn't even understand as a big deal. Trails of Cold Steel IV getting a localization is the best joke Sony could come up with. Yep, super fake. I feel so played.
Please tell me what the other two posts are, because I'd be willing to tell you how you're mistaken there as well. There was one and only one april fools post on this site lol.