So yeah, with the inventories of the Tower we're seeing that you can definitely use
sleeves and
paunces. It's important to note that he's talking about
sleeves of mail not voiders. Modern use of the term voiders usually means something that is sewn to the garment that just covers the arm pits and under-arms. Whereas a pair of sleeves are full coverage sleeves of maille.
So the inventories are probably showing THESE:
or these:
Not necessarily these (true voiders):
So yeah, you can 100% document the use of sleeves and paunces (skirts) of mail to the 14th century which is awesome. I believe Lord Rodney used these exact inventories to document his stuff.
Now when it comes to what's appropriate to be worn with a breastplate and backplate we don't know for certain, but I would guess that if you were a knight or well equipped man at arms and you don't have a full cuirass (i.e. breast AND back) then you should still be wearing a shirt of mail to protect your back. If you've got a full cuirass, then by all means go with sleeves and skirt. They were presumed to have been made specifically because of the full cuirass rendering the full mail shirt redundant, so it would follow that if you've got a backplate, you can optionally just wear sleeves/skirt.
Since I don't have a backplate on my personal kit, I will not be making any transition to sleeves and skirt as much as that pains me, because I hate wearing a haubergeon, but it makes no sense to leave my back unprotected.