It just depends, price may or may not change CIG hasn't commented on why they changed the policy or maybe it was just a mistake made by turbulent. Or at least I haven't seen them comment on it yet.
The Upgrades and CCU's use to stay the same as the original melt price and some still are, however the last Starfarer sale changed that. I would not expect the price of melted ccu's or upgrades to stay the same any more, they have already retroactively changed them once before. If you melted a Standalone ship those seem to have stayed the same as the original price but there is nothing stopping CIG from doing what they did with the CCU unmelt prices to the standalone ships as well.
Also they brought back the April Fools page so you can get the forum title "fooled" if you click on the "buy now" button for the skin. You won't get the $5 coupon but you can at least get the title if you missed it.
nice got the title.