At HASCON, Hasbro's own convention, the Marvel Legends section has given us a few snippets of new figures joining the 6" range in late 2017 and into 2018.
How most of these will line up in terms of waves and release dates is not confirmed, but checkout the images below from around the net for new figures of Wolverine, Storm and Phsylocke from X-Men. You can also see a new Iron-Man as well as Klaue and Thanos. The new Apocolypse Build-A-Figure was also discussed, but not on display.
We now await the confirmation, likely at NYCC, as to how all these join together and contain which BAF's