According to a photo posted by Airsoft Outlet Northwest, which is right down the road from the Nike campus, Nike will be introducing the SFB2 on 31 January.
I can see a few differences from the current SFB which has been around since 2008. For instance, the sole has been changed from the FREE-style sole. Additionally, the upper loses the classic Jungle Boot styling and forgoes the metal lace holes for fabric lace barrels on the top of the foot.
Get them here store.nike.com/us/en_us/pd/sfb-field-8-boot/pid-855037/pgid-855038.
Tip ‘o the Hat to Thumpy Covey!