There are two posts out in the blogosphere that explain what's going on:
Posted to EN World:
Hi guys, this is Jayson (Elliot). I'm the editor for Gygax Magazine. Gygax Magazine is myself, Ernie Gygax, Luke Gygax, Tim Kask, James Carpio, and Jim Wampler. Our first issue is out in December; since it's not finished yet, we've been pretty quiet about things until it's ready. Just to address some of the questions, I thought it was best that I leave a reply. We do own the trademark for TSR, and have since December of 2011. We are a new company, not the old TSR, as they were purchased by Wizards in the '90s. The trademark was abandoned about nine years ago, and we registered it in 2011. We decided the best thing to release first as TSR was a gaming magazine, because we wanted a way to bridge the traditions of the old guard with the awesome new games that are out today. Feel free to ask me anything you like, I'll do my best to answer!
And a Facebook post from Tim Kask:
Here's a snippet from our ad prospectus.....
so now you all the official word there is at this time.
Gygax is a gaming magazine for new and old
players alike.
We are looking forward to the games of tomorrow
and today, while preserving the traditions and history
that got us where we are now.
Our articles and features cover current independent
and major publisher games such as Pathfinder,
Savage Worlds, The One Ring, Shadowrun,
Godlike, Labyrinth Lord, Marvel Heroic Roleplaying,
Warhammer 40k Roleplay, Traveller, and others,
as well as classic out-of-print games with a modern
following, like AD&D, Top Secret, and Gamma
World.
Our features include comics by Phil Foglio (What’s
New With Phil and Dixie), Jim Wampler (Marvin
the Mage), and Rich Burlew (Order of the Stick).
Contributors include Jim Ward, Cory Doctorow,
James Carpio, Ethan Gilsdorf, Dennis Sustare, and
many more.
Publishing quarterly in print as well as PDF and iPad
editions, we hope each issue of Gygax will be an
anticipated and treasured addition to any gamer’s
library.
As I understand it, this new magazine will be very similar to the original Dragon magazine before nit became a "house organ" for TSR and its products. Perhaps more like White Wolf and/or Shadis.