I guess, you mean types of event objectives? And to answer your first question: Not really, to be honest. Some of these objectives were quite tricky and a welcome change from doing free play after free play.

Some remarks on your four suggestions, then something in general from my point of view:

> *level up crusaders x times (f.e 1/2 million times) (through resets and event)
Have you checked how many Crusader Levels across all Resets you have bought? Half a million times will take a non-veteran player a long time from my point of view. Leveling all 20 Crusaders up to 5k and doing it five times until you get an event objective done. For most players, the event is over until they reach half of it. You might be able to have a flexible amount there - let's say 1% of your total crusader levels across all resets. But this would be too easy for new players, yet comparably high for veteran players who have reset a couple of thousand times.

> *level x times
Good idea! How about level 100 times to get crusaders and slightly higher to gain JCs during an event. Oh, hold on ... you see the flaw in this one, right?

> * get x amount of gold
Same as with the first suggestion. This will either be too high if you want to make this across multiple resets or too low for advanced players.

> * open x silver chest (gold ones would pay to win)
Actually, I don't really understand what you mean with "gold ones would pay to win" ... Besides, this would force players to give up on silver chests which is too easy for veteran players who might simply hoard them in the tens of thousands already or unfair for new players who need the silver chests more urgently to finish regular objectives.

In general, CNE has found a nice balance for the events. Two objectives which can be finished for relatively new players to get the event crusaders and not too much time needed. Other objectives which are tougher and get more and more creative with each event which award JCs. Other than that, I think events and their incentives - crusaders or JCs - should stay within events, not outside of them. Usually I do have time during events to do quite a few Free runs or finish a seemingly easy other objective while collecting event currency to do another Free Run there. So, even right now, during an event, you are free to finish and work on other objectives if you time it right.