Well after loads of speculation - this morning we wake up to the newest present from Luca Todesco - a Yalu IPA Jailbreak tool for iOS 10.2 (includes 10.0.x and 10.1.x. But it's for a VERY LIMITED Phone set. ONLY the 6S, 6SPlus, SE and iPad Pro are included as of this launch.
Unlike the buggier JB for 10.1.1 which included the above phones plus 7/7Plus this semi-tethered IPA tool, installable with Cydia Impactor, has Mobile Substrate included and fully working according to Luca and other early testers.
I thought there may likely be some uniqueness to this JB - so I figured a new thread was warranted. Those of you who've made the jump - please tell us how it's going!
Since I only own a 6 and a 7Plus, I won't be able to do test early. As soon as it becomes available for iPhone 6 - I'll move my 6 from 9.3.3 to help out.