As a third party, I'm in favor of Rostam's case being given a retrial as it were, however I think at this point it might be too late to retcon him as having survived, since a couple people have already reacted IC to his death.

I also agree Rostam's death was kind of anti-climactic, but anti-climactic deaths have happened a few times in canon works too. Something something, honorable heroes never die honorable deaths, because Grail Wars are evil and humans are jerks, something something.

I do think that [@Beloss] should be allowed to app a new Servant character (later on obviously, as the GM said), since death IC shouldn't mean exclusion from the RP.