Marvel provided this image below to comicbook.com with little to no other information on what this new event or phase will entail but we have some thoughts to speculate on.
With Civil War II just ending and the launch of a new phase called "Marvel NOW!" had a teaser saying "Divided We Fall" which has showing the Marvel heroes splitting into two groups. The new age heroes of Marvel and the Legacy Characters.
This has been shown mostly in the Avengers and Champions comics showing that the young heroes want to redefine themselves instead of following in their elders footsteps.
What we hope is that this is the new phase for Marvel Comics on trying the rebuild their universe to a more classic feel after the events of Secret Wars where Captain America has turned to Hydra and is taking over the world. For more Nerd News keep it right here at Nerds With Words