So the "official" Patch Notes are in:
http://community.wbgames.com/t5/Latest-Updates/MKXL-Patch-notes-3-1-2016/ba-p/1059689
***First, I'll change the letters to our understandable 1, 2, 3, 4:
-D1 is now 6f startup and -5 on block, down from 9f and -4 on block
-D3 is now 8f startup and -7(-6) on block, down from 10f and -1 on block (it can be punished by 6f reversals, whoop dee doo -___-)
-F4 is now 15f startup and -9(-8) on block, down from 17f and -32(-31) on block
-B4 has increased pushback and is now -4 on block, up from -8
-Sais have 3 less recovery frames and -8 on block, up from -12, || +14 on hit now, up from +11
-EX Sais have 5 less recovery frames and -2 on block, up from -8 || +20 on hit now, up from +15; gap is still present
- Air Sais are now 13f startup, down from technically 17f, removed 3 recovery frames and can now be combo'd on hit | on block and on hit frame data appear roughly the same for Air Sais and EX Air Sais, as it's not stated in the notes and in game data is wrong; gap is still there
Ravenous:
-High Pounce is now 12f startup, down from 15, increased range and hitbox, and now -3 on block, up from -7 || 9 less recovery frames
-Low Pounce is now 8f startup, down from 13f, increased range(appears to be so) and 8 less recovery frames
Piercing:
-B1 is now -2 on block, up from -7(-6) *incorrect numbers from NRS provided*
-B12 is now -1 on block, down from +2 (yet people will still and still DO bitch about it....)
-Low Sais have 5 less recovery frames and is now +7 on hit, up from +2, and -17 on block, up from -23
-EX Low Sais have 5 less recovery frames and is now +8 on hit, up from +3, and -14 on block, up from -20; gap is still there
***NOW, for the notes that weren't put into the "official" patch notes:
-D2 is either safer, or all D2's have increased pushback across the board because it can no longer be punished by roll
-F44 is now -10(-9) on block, down from -9(-8) so 8f normals can now punish it; gap is still there
-4U3's 1+2 extender can no longer be held down on hit; it must be inputted on the right frame
Piercing:
-(2) from B12 appears faster, I'll check when I get a chance
-Cancel advantage on block from B12 has been reduced, thus no longer having a true blockstring of b12~telekick~Xray, as there is now a gap in between the B12 and telekick
-B1 has less active frames