For Mobile, 980x is the mobile equivalent of WLRI. Albeit with differences, like trading restriction and more importantly the general feel of the game.

There's English translation patch for it as well, you'll need to find the Discord to grab it. For Playpark's version, it's made directly for SEA players, specifically Thailand.

Generally speaking, if you're a new player just jump into WLRI. Chinesegamer, is the first initial version released, is the exact copy of IGG's made for CN/TW players. NWLO as stated above, is on it's last legs.

To add to above regarding WLRI, WLRI has "potential" updates, Athena/Venus/Louis/Charlotte RB's are something that might come. With content like "Dark Realm" being a possibility, which is the completion to Ocean Heart Pieces.

There's guaranteed updates on every Thursday(Server time GMT+8), that mostly includes new packs. That are mostly IM's, that are either cosmetics or contain broken stats.