Regarding the Zadnor ending...

In hindsight, it does seem rather possible Gabranth's "death" was staged but even if it was, with the IVth legion basically dissolved and a terminal illness catching up with him it seems unlikely he'll be able accomplish much of anything...though if those allagan relics he discovered are of them same sort as Save the Queen and Zantestsuken, I suppose some new issues could come up as a result of that.