,
There are actually two “types” of Globals at XOJET. There are the 5 (I think) that were added to the 135 certificate to be utilized at large. I believe those are fully staffed now and it is unlikely (IMO) that they will take new-hires before offering a slot to others in XO. There are also a couple of privately-owned Globals that XO now manages. They recently had job postings open for both seats, but I believe those are closed right now.
Bottom Line: Possible, but not likely.