The Japanese Pokémon（ポケモン）website has just announced a new mobile game today (16th February). The new game is called Hanero! Magikarp!（はねろ！コイキング！）. It is based on Magikarp as the title suggests.
Pokémon made this announcement in the form of a news report. This report titled as "Scoop! A Mysterious Hole!" says two 90cm-long holes have appeared in a calm and peaceful town. The witness, Aniki（アニキ）, claims there were loud noises and a minor earthquake before he found out about the holes. The reason why they are there is still unknown.
Official website: http://www.apppokemon.com/koiking/