The Steel Camos will still be offered for 10,000 Steel. They will be a bundle that includes:
A Tier 10 "Steel" Perma-Visual
A Tier 10 Linkable Permanent Economic Bonus
The most recent DevBlog literally details what Permacamo will Convert into: https://blog.worldofwarships.com/blog/327
The -50% Service Cost is being exchanged for +25% Credits. The Permacamo already has +20% Credits on it, so they combine to +45%. We've decided to round that up to +50% Credits Bonus.