Default [Q] Porting the S4 4.4 Leak?

Hellloooo, I noticed that 4.4 touchwiz has been leaked to other variants of the S4 but it'll probably be forever till we get it, or even a leak of it. Correct me if I'm wrong but the other variants are still and S4, so wouldn't it be possible to take the 4.4 leak and add/remove certain things between it and our current touchwiz rom to get it to boot for us? I've done that with Sense before but I had alot of help and I don't know the 1st place to start with Samsung's stuff, someone has to have thought of this yes?
Device: Samsung Galaxy S3 Nexus 7 (2013)
ROM: Stock 4.3 MK3 Stock 4.4.2
Carrier: Sprint

Kyocera Oystr → Kyocera Marbl → Motorola i880 -> HTC EVO Shift → HTC EVO 4G → HTC EVO 3D → Motorola Photon → Samsung Galaxy S2 Epic 4G Touch → HTC One S → HTC Hero → Samsung Intercept → LG Nexus 5 → Apple iPhone 5c → Samsung Galaxy S4 → HTC One → iPhone 5 → Samsung Galaxy S3