Hey Starmage! Thank you for your patronage, as always! The Deluxe versions of the packs, being content updates that I made post original release through DEGICA / Komodo / Humble Bundle / other publishers, may not be made available outside of itch.io for the time being. That's for a few reasons: 

• Each different platform has different restrictions on content, for instance, which has lead me to altering my artwork a couple of times. I don't mind it, but I like having a venue where I'm more free to experiment.  
• Additionally, as the packs get released on different storefronts, by different entities, it's difficult to keep updating them as there are multiple parties involved. 
• And last but not least, I rarely put up discounts here on itch.io, while it's possible to acquire my packs at a significant discount on other platforms.

These different factors make me consider fair to have some content that is exclusive to itch.io versions of my packs. However, I may reconsider in the future. Consider itch.io being a more direct way of supporting me and my work, and with the ease of me uploading updates (as opposed to the aforementioned multiple parties involved when we talk about any other storefront) should make this worth it. 

I'm always open to suggestions, though, however limited in the applications of said suggestions I may be. Thank you once again!