Something I highly doubt we will see again this year. But it was an even around Christmas that let people send items and crystals to friends/alliance members. There were solo milestones for how much you gifted and alliance milestones that had rank rewards. It created some shadiness amongst the top alliances.
I think the Gifting Event can exist if they get rid of Alliance Ranked Rewards specifically. That was the area that was getting highly abused. People paying Arena bots to join their alliance and dump all their hacked units into point for the event. Without Alliance Ranked Rewards, the incentive to do that is basically 0, especially is you still have the Solo Event to encourage people to do their own share.