The new map is a new island that you can visit. When you go to the new map you will notice that there are a lot of new things that you can collect. For example, you can collect a new set of coins, or gems that are a lot rarer than the gems in the old map. I really like the new map and I hope for more in future updates.
After the update, a new NPC was added to the game, the quest giver. You can talk to the quest giver to get a quest. When you complete one, you will get coins and gems. The coins and gems will be based on the quest difficulty.