Players can earn 50 coins from both systems, total of 100 coins a day. But, costs of items in the store will be doubled. The number of coins all players currently have, as well as the number of coins being sold in the store for real money will also be doubled.
What is the point of this? It is functionally the same as just making both gym systems provide a maximum of 25 coins per day, but doubling the amount of work required to get those coins.