I have my doubts he's in critical condition, but given his age and frailty we can't rule out him catching even a simple cold or flu in hospital and carking it as a result. If he doesn't die during this particular incidence of "unwellness", it seems very unlikely he'll live to see the end of the year - though if there's one thing we can learn from old Phil's adventures in deathlist, "seeming unlikely to survive" something means very little in his case.