When i kill bosses on the PTR in LFR, they show in the LFR window as killed, but SavedInstances won't show it.
What data is needed to add a complete new raid with its wings?

The LFR ids, not sure where to find them atm though.

See https://github.com/eTzmNcbkrng/SavedInstances/blob/master/SavedInstances/SavedInstances.lua#L137

Can we iterate through the numbers from tod to maxidnand check for valid return values,aka brute force it?

They are in LFGDungeons.dbc, do you still have your ID on the PTR to test something?

be fast, can go down any minute now:-)

[1610] = { total=3, base=1, parent=1527, altid=nil, remap={ 1, 2, 3 } }, -- Antorus: Light's Breach
  [1611] = { total=3, base=4, parent=1527, altid=nil, remap={ 1, 2, 3 } }, -- Antorus: Forbidden Descent
  [1612] = { total=2, base=7, parent=1527, altid=nil, remap={ 1, 2 } }, -- Antorus: Hope's End
  [1613] = { total=1, base=9, parent=1527, altid=nil, remap={ 1 } }, -- Antorus: Seat of the Pantheon

still have to find what the parent id is

Is the parent the 8th or 10th return value from GetInstanceInfo maybe?

I don't think so

ID has been reset in anticipation of tomorrows patch on the ptr, so we won't be able to test it anyway.

is what i got during Varimathras

local _, instanceType, difficulty, _, maxPlayers, playerDifficulty, isDynamicInstance, _, instanceGroupSize, lfgID = GetInstanceInfo();

alright, is the rest correct though? is it 2x3 bosses then 1x2 and then 1x1 like Tomb or is it a different split?

Or maybe it was correct, I will use 1712 for now.

The third wing of 4 covers 3 bosses Varimathras, Kin'garoth and Shivarra, rest is invisible until it becomes available for a total of 11 bosses as it seems, so i would assume 3x3 and 1x2 in the last wing

Thanks, we'll see how it goes when the wings open and everything is broken :D