I asked the dude who posted this on twitter where this came from but he never responded so unfortunately I can't tell you if this is some sort of fan art or if it came out any publication.
So today I bought a brand new Marvel comic for first time in almost years. Marvel's treatment of the ROM spaceknight legacy has prompted me toward a personal boycott of new comics to say nothing of the cover prices these days. But I finally made an exception for this one shot issue of Magneto & The Mutant Force which has Sabra among the cast of characters. I'd say it's been around 3 years since she last made an appearance in any Marvel title so I had to check this out.
In this alternate reality there are no Avengers and Sabra is part of a mutant rebellion led by a paraplegic Magneto against the government which Squadron Supreme are agents of. It would have been nice had there been a bit more of her in the issue but over all I thought it was ok. Been out of the loop for quite a while when it comes to all things going on in the published Marvel Universe so I'm sure there's some context to the story I'm missing here.
And here we have the latest commission piece from our pal Sal. Unfortunately I don't have any details about about who it was for or how much whoever paid for it which I think we all are curious about. I think this is the best commission form Sal in quite a while.