| Irnk, Dead-Eye's Prodigal |
There was an issue of Dragon that had a number of pre-3.5 to 3.5 thumbnail conversions of TSR Campaign Settings. I don't recall the issue # other than I know it came out before the 3.5 Psionics Handbook (whatever that was called). So far as I do recall, that is the only work that has been done on Birthright since the CS was closed down & it only had a single-page write up, including a feat that 'kind of' simulated the Birthright blood powers.
I did play it, it was an amazing concept, unfortunately like a lot of other amazing concepts out there (I loves me some Orkworld & Ars Magica) it is more likely to find life as a dedicated group's home game than something with much life across the community.