I think the "fees may apply" might only be for business accounts. So far I haven't been charged for automatic relists despite the text being changed. Of course, always check your remaining freebies (the last of the 40 in my case, since I don't ever get selected for these promotions) and your seller fees before and after an item automatically relists, just in case eBay does eventually do the dirty like they did with the old Buy It Now listings.