Unless the ability explicitly says so, the creature does not change form upon death.¹⁾

Whether a creature can be raised from the dead by raise dead or resurrection depends on its original form. For example, a human druid who died while shape changed into giant bat form could be raised, but an elven or half-orc who died while polymorphed into a human could not.²⁾ When the creature is raised, it will remain in the form it died in (including wounds and poison, as normal, unless the means used to raise state otherwise).