Full swing into Q1 activity at work so not much time to follow up here and traveling the next several weeks. Have more information regarding the gasket issue, but not going to post until I have time to verify reliability (catching up on reading here...a bit of derailment it seems). The information I may post here involves Ford's aligned business framework partner(s) in some detail and may help shed some light on the "why" but no details on an ultimate fix other then most likely an announcement after the 2017 annual report and shareholder meeting is held (March-May 2018). Make what you want of this.
The cause of the problem is not necessarily entirely Ford's fault where some responsibility rest on their supply chain partners if verified. It is most definitely looking like a communications screw up and loss of supply chain oversight during a particular rough start to the

production that had a lasting ripple effect. Suspect some of those partners may share in the cost of making this right and probably a good reason Ford is so "mum" on information as it works out liability details within its strategic network.
Regarding my RS, it is now frothing coolant in the reservoir. Still no codes thrown or loss in performance/drivability and the oil is in great shape (personally tested last weekend via NMR- complete overkill, but fun). The car will not see much driving until near end February since I will be out of the country most of that time. Getting to meet some folks from Richard Childress Racing team we sponsor so at least looking forward to this (we invented some of the lubrications and carbon fiber technology using the racing platform to further developments).
Those in the process of having a warranty repair if not receiving a complete new engine:
1) Verify block/head surface quality
2) Bore bridge cooling channels are not blocked by debri or poor drilling
3) No damage to the cylinder walls
Document and take pictures for your own protection before the engine is buttoned back up. However, as stated above, you should demand nothing less than a complete engine replacement once diagnosed as having a failed leaking gasket at the start of the warranty repair due to potential unseen damage/stresses placed on the engine from abnormal temperature gradients around the leak point, acidic degradation products derived from thermal oxidation of glycols into glycolic acid and/or formic acid (in the presence of aluminum), etc, etc, etc...