Blue Essence in Hextech Crafting

Hello, I have been using the new Hextech Crafting for a while now and have noticed a flaw. I have all of the champions in the game thus far therefore making all of the champion shards I get useless to me. I now have 12,340 blue essence and I also keep getting skin shards for skins I already own... Which isn't as bad because of the ability to disenchant. My question is; Are Riot going to stop you from being able to receive champion shards for champs you already have and/or make another use for blue essence? I love the exciting new feature that is Hextech Crafting but I can't help feel disappointed in earning or buying chests and receiving things that are... In essence.. Useless to me.
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