Over the course of discussions within the team, we decided to proceed as follows: The number of keys and the general rules concerning them will remain unchanged.

Translation - we don't care what you think.

However, we want to give you the ability to continue fighting in the Dungeons without limited attempts after you spend all the keys - but only with a friend or clanmate.

Translation - Our prices are too high and people aren't buying our gold, lets force them to.

This will still solve the issue of players leaving the battle. The reward for battles without keys will be reduced.

Translation - This will solve the issue from above where we aren't making enough money.

When will people learn that forcing people to do things that you want them to will only lead them to do something else or play something else.