Instead of extending the same Cave key event, shouldn't it be more beneficial for players if it is a new Cave key event instead?

Correct me if I am wrong, but judging by the time Jul4-17, I suspect the cave rebates will not reset, this means, those that already did the rebates have no further use of this event.

If the Cave rebate has been reset, then it will benefit both p2w and f2p players. Lengthening the duration of Cave key event without resetting the rebate kind of goes against the intention of helping out the player due to the Rune stones change