It appears that the US LEGO Shop at Home site (shop.LEGO.com) and my region's physical LEGO store failed to receive any of the following January 1 release sets:
75135 Obi-Wan's Jedi Interceptor
75138 Hoth Attack
75141 Kanan's Speeder Bike
75142 Homing Spider Droid
75125 Resistance X-Wing Fighter (Microfighter)
75136 Droid Escape Pod
75134 Galactic Empire Battle Pack
75133 Rebel Alliance Battle Pack
75127 The Ghost (Microfighter)
75130 AT-DP (Microfighter)
75128 TIE Advanced Prototype (Microfighter)
75129 Wookiee Gunship (Microfighter)
75137 Carbon Freezing Chamber
After a lot of driving I also found none at any moderately "local" Toys R Us or Target stores, and I'm not seeing them on Amazon.com, ToysRUs.com, Walmart.com, or Target.com.
My "local" LEGO store also received no City 60131 Crooks' Island or Friends 41135 Livi's Pop Star House, though those have shown up online as planned. They hope to get some of the missing sets in a shipment next week, but it is only hope at this point, with no certainty.
As you can imagine, I'll be on the lookout.