Get the most out of your shards

From the tip about getting the most out of the shards, I understood that one should disenchant or reroll champ shards. But do the changes in the loot system affect skin shards too? I mean, I have like 30 skin shards that I am unsure of what to do with. If I keep them as they are now, is there any danger of them being removed once the preseason hits, or any danger of their prices increasing (i mean the orange essence required for a skin shard to be upgraded)? Or will skin shards remain as they are now (orange essence price and all)? Sorry if I ask a stupid question.
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