I don't have a problem with hype or wishful thinking, but I won't let deliberately misleading information go unchallenged. They didn't add a player ID. "Player ID" in game dev speak is a reference number for the game engine to identify the collections of assets that make up a character. For example, Alduin's Player ID in Skyrim is "32DB7." Every time Alduin appears in the game, the game engine has the computer access all the assets under the "32DB7" data table and uses that data to render and animate him on the screen. You can actually make Alduin your player character using console commands or other tools much like the Octohackers did with Octolings. Hackers found a way to set the Player ID for Octolings to load for the player character via Save Editor. The devs didn't "add" a player ID. NWPlayer found a way to use what was already in the game to load an Octoling as her player character. I don't care what anyone tells you, a "Player ID/PID/PRID" is not an indication that something will be playable or is meant to be playable. All characters, whether playable or NPCs are defined as "players" in the game engine and the SDKs used to edit game files. The whole "Octoling Player ID" thing isn't an argument for or against playable Octolings.
The more compelling indicators of playable Octolings would be:
1. Updated gear rigging.
2. Male Octoling models, or at least a placeholder in the game data for them
3. An update that added customizable skin and eye colors like Inklings have rather than an update simply adding eye textures that match the concept art.
4. An Octoling skeleton for the Kraken special ability. Right now, it has the Octopus model distorted to fit the squid-shaped Kraken skeleton designed for Inklings. That's because Octohackers are loading the Octopus model, but no Kraken skeleton exists for the Octolings, thus they had to jury rig the octopus model to fit on the Kraken skeleton.
5. Something from Nintendo suggesting that, despite their Japanese name pretty much saying there are all female (Octo-amazons), male Octolings exist somewhere.
Ask NWPlayer if she's found any of that.