It could happen but 40k also got a few single reveals first and then showed off the rest together at a preview event.
Specifically they showed the Terminators, the Phobos Lieutenant, the Terminator Librarian, the Termagants, the Von Ryan's Leapers and the Winged Tyranid Prime in weekly monday articles with the rest together at Warhammer Fest.
The solo articles also got slots in the list of articles like the Liberators and Clanrats. The only difference is that they where in the same list as all the other articles while ours are split between "About the new edition" and "Model reveals" but that could just be for better readability