Stormbringer has been used by multiple other entities- Deep Purple had an album, Whitesnake had a song, Transformers had a Stormbringer mini-series, there was an old video game called Stormbringer in the Magic Knight series. Unless GW is specifically talking about a sword, there is nothing to connect the two beyond it is two words brought together. Is it a possible reference? Sure, it could be, but I doubt any of the GW marketing team that probably cooked up the name has even heard of the Elric series or knows anything about the influences that Moorcock had on Warhammer (or sci-fi/fantasy in general for that matter). Considering that the main faction that is featured in the magazine will be the Stormcast Eternals, calling it Stormbringer is fairly on the nose and easily could be attributed to that, rather than any nefarious means.And yet another blatant rip-off by GW on WarCom today.
'Stormbringer' magazine.
Moorcock's estate should send a C&D along with Frazetta's.
We now return you to your regularly scheduled Sump programming.
Marketing pleb- "Well, we called the last one Imperium because it had Space Marines in the first issues and this one has Stormcast. What about Stormbringer?"
Marketing boss- "Sure, whatever. Do some research to make sure that there hasn't been any other magazine with that name."
Marketing pleb, after a quick google- "Nope, no magazine."
Marketing boss- "Done."
It's also been known for quite a while, well over a year, so I'm not sure why there is any issue now...